Duchess Kate and little sister Pippa reportedly want to get 'pregnant at the same time'

Baby fever has reportedly hit the Middleton sisters!

Soon after giving birth to Princess Charlotte in 2015, Duchess Kate wanted to try for baby No. 3 right away, but it just wasn't the right time. 

“She wanted another almost since giving birth," a sourced revealed to Us Weekly

But between two little ones, Prince George and Princess Charlotte, and the their royal duties, it just wasn't the right time for Kate and hubby Prince William to add to the brood. 

"They promised each other they wouldn’t even think about having another child until they were mentally ready and it felt right," the source added.

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See Kate and Pippa Middleton together at Pippa's wedding
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See Kate and Pippa Middleton together at Pippa's wedding
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and Catherine, Duchess of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, right, arranges the train of her sister of her sister Pippa Middleton as she arrives with her father Michael Middleton for her wedding to James Matthews at St Mark's Churchon May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and James Matthews smile as they are joined by Catherine, Duchess of Cambridge, right, after their wedding at St Mark's Church onMay 20, 2017 in Englefield, England(Photo by Arthur Edwards - WPA Pool/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Michael Middleton, Pippa Middleton and Catherine, Duchess of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by UK Press Pool/UK Press via Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton, James Matthews and Catherine, Duchess of Cambridge leave after getting married at the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD, ENGLAND - MAY 20: Pippa Middleton and James Matthews smile after their wedding at St Mark's Church on May 20, 2017 in in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge married hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte was in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, right, walks with the flower boys and girls, including Prince George, second right, and Princess Charlotte after the wedding of Pippa Middleton and James Matthews at St Mark's Church ion May 20, 2017 in in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge married hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte was in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD, ENGLAND - MAY 20: Pippa Middleton and James Matthews smile after their wedding at St Mark's Church on May 20, 2017 in in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge married hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte was in the wedding party, along with sister Kate and princes Harry and William. (AP Photo/Kirsty Wigglesworth, Pool)
Britain's Catherine, Duchess of Cambridge (R) stands with her children Britain's prince George (L) and Britain's princess Charlotte (2R), following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. Middleton married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, as she wore a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Pippa Middleton (L) and her new husband James Matthews leave St Mark's Church in Englefield, west of London, on May 20, 2017 following their wedding ceremony. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Pippa Middleton (R) kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge stands with her daughter Princess Charlotte of Cambridge, a bridesmaid, following the wedding of her sister Pippa Middleton to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
Pippa Middleton and her new husband James Matthews leave St Mark's Church in Englefield, west of London, on May 20, 2017 following their wedding ceremony. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. Middleton, married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, as she wore a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge attend the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
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Well ... according to sources, the time is now

"They would love to be pregnant soon," the insider said of Kate and William.

Coincidentally, Kate's sister, Pippa, is looking to start her own family just three months after her wedding to billionaire James Matthews. After all, their neice or nephew will need a playmate!

One insider revealed the brunette beauty and her hedge fund manager husband are "are currently trying for a baby."

The insider added: "Starting a family is something they’ve spoken about since long before they got married."

RELATE: Photos from Pippa Middleton's wedding day:

56 PHOTOS
Pippa Middleton's wedding day
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Pippa Middleton's wedding day
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her new husband James Matthews seen leaving St Mark's Church after their Wedding Ceremony on May 20, 2017 in Englefield, England. (Photo by Neil Mockford/GC Images)
Britain's Catherine, Duchess of Cambridge, (back row R) watches as her sister Pippa Middleton (C) walks with her new husband James Matthews (L), following their wedding at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge, bridesmaid leave the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD, ENGLAND - MAY 20: Catherine, Duchess of Cambridge, right, walks with the flower boys and girls after the wedding of Pippa Middleton and James Matthews at St Mark's Churchon May 20, 2017 in in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge married hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte was in the wedding party, along with sister Kate and princes Harry and William. (AP Photo/Kirsty Wigglesworth, Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
Pippa Middleton (centre R) kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017, as the bridesmaids, including Britain's princess Charlotte (L) and pageboys, including Britain's prince George (2R), walk ahead. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton (R) is escorted by her father Michael Middleton as she arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Matthews and James Matthews exit the church after their wedding ceremony at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD, ENGLAND - MAY 20: Pippa Middleton arrives for her wedding to James Matthews at St Mark's Church on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD, ENGLAND - MAY 20: Donna Air, left, arrives at St Mark's Church ahead of the wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
Spencer Matthews, center, stands at the entrance of St Mark's Church in for the wedding of Pippa Middleton and his brother James Matthews on May 20, 2017 in Englefield, England. Middleton, the sister of Catherine, Duchess of Cambridge is to marry hedge fund manager James Matthews in a ceremony Saturday where her niece and nephew Prince George and Princess Charlotte are in the wedding party, along with sister Kate and princes Harry and William. (Photo by Kirsty Wigglesworth - Pool/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Britain's Prince Harry (R) and Britain's Prince William, Duke of Cambridge attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince George of Cambridge leaves after the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Pippa Middleton (R) poses for a photograph with her new husband James Matthews, following their wedding ceremony at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Swiss tennis player Roger Federer (L) and his wife Mirka attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Gary Goldsmith (L), uncle of the bride attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Swiss tennis player Roger Federer (L) and his wife Mirka attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Donna Air (L) attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Justin Tallis - WPA Pool)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Guests seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Guests seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge, bridesmaid leave the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her father Michael Middleton seen arriving at St Mark's Church for her Wedding to James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and Michael Middleton seen arriving at St Mark's Church for the Wedding of Pippa Middleton and James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
Britain's Prince George waves as he leaves in a car after attending the wedding of his aunt, Pippa Middleton, to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. After turning heads at her sister Kate's wedding to Prince William, Pippa Middleton graduated from bridesmaid to bride on Saturday at a star-studded wedding in an English country church. The 33-year-old married financier James Matthews, 41, at a ceremony attended by the royal couple and tennis star Roger Federer, wearing a couture dress by British designer Giles Deacon. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Bride Pippa Middleton and her father Michael Middleton seen arriving at St Mark's Church for her Wedding to James Matthews on May 20, 2017 in Englefield, England. (Photo by Neil P. Mockford/GC Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge arrives with her children Prince George of Cambridge, Pageboy and Princess Charlotte of Cambridge, bridesmaid, along with other Pageboys Casimir Tatos, Edward Sebire, William Ward and other bridesmaids Countess Philippa Hoyos, Lily French and Avia Horner at the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and her father Michael Middleton arrive at the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Pippa Middleton and her father Michael Middleton arrive at the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge waits for the bride with her children Prince George of Cambridge, page boy and Princess Charlotte of Cambridge, bridesmaid at the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid and Catherine, Duchess of Cambridge arrive for the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Michael Middleton (L), walks with his daughter Pippa Middleton, as they arrive for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Catherine, Duchess of Cambridge leads the page boys and flower girls as they arrive for the wedding Of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Britain's Catherine, Duchess of Cambridge (L) stands with her daughter Britain's princess Charlotte, and the other bridesmaids and pageboys, as they await Pippa Middleton to arrive for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Charlotte of Cambridge, bridesmaid attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Nanny to Prince George and Princess Charlotte of Cambridge, Maria Borrallo, walks to the church ahead of the wedding of Pippa Middleton and James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Britain's prince George (L), a pageboy, Britain's princess Charlotte, a bridesmaid, stand with their nanny Maria Borrallo, as they attend the wedding of their aunt Pippa Middleton to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL AND AFP PHOTO / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
ENGLEFIELD GREEN, ENGLAND - MAY 20: James Middleton greets Donna Air as she attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews (C) brother of James Matthews attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews brother of James Matthews, greets Donna Air as she attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Spencer Matthews brother of James Matthews (L) as Donna Air is welcomed to the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Princess Beatrice (L) attends the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince William, Duke of Cambridge and Prince Harry (R) attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
ENGLEFIELD GREEN, ENGLAND - MAY 20: Prince William, Duke of Cambridge and Prince Harry (R) attend the wedding of Pippa Middleton and James Matthews at St Mark's Church on May 20, 2017 in Englefield Green, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
Pippa Middleton, (R) arrives with her father Michael Middleton, in a 1951 Jaguar Mk V car, for her wedding to James Matthews at St Mark's Church in Englefield, west of London, on May 20, 2017. Pippa Middleton hit the headlines with a figure-hugging outfit at her sister Kate's wedding to Prince William but now the world-famous bridesmaid is becoming a bride herself. Once again, all eyes will be on her dress as the 33-year-old marries financier James Matthews on Saturday at a lavish society wedding where William and Kate's children will play starring roles. / AFP PHOTO / POOL / Justin TALLIS (Photo credit should read JUSTIN TALLIS/AFP/Getty Images)
Gary Goldsmith and daughter Tallulah arrive ahead of the wedding of Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Pippa Middleton and James Matthews wave as they drive a Jaguar E-Type after their wedding, dubbed the society wedding of the year, at St Mark's church in Englefield, Berkshire.
Pippa Middleton and James Matthews wave as they drive a Jaguar E-Type after their wedding, dubbed the society wedding of the year, at St Mark's church in Englefield, Berkshire.
Pippa Middleton and her husband James Matthews leave St Mark's church in Englefield, Berkshire, following their wedding.
Pippa Middleton and her husband James Matthews leave St Mark's church in Englefield, Berkshire, following their wedding.
Prince George and Princess Charlotte at the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Guests arrive ahead of the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
Guests arrive ahead of the wedding of the Duchess of Cambridge's sister Pippa Middleton to her millionaire groom James Matthews, dubbed the society wedding of the year at, St Mark's church in Englefield, Berkshire.
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If Pippa and Kate did get pregnant around the same time, they can live out one of their biggest fantasies.

“It’s long been a dream for Kate and Pippa to be pregnant at the same time,” another Middleton family friend noted. “To share that would be amazing.”

Because of Kate and William's recent move to London, having babies around the same time has turned into an even more enticing idea for the tight-knight sisters. Between shopping for baby clothes and pregnancy yoga classes, it sounds like these two will have a blast -- and we definitely want to see photos! 

Princess Kate has proven time and time again how great she is with her two adorable tykes Charlotte and George. Do you remembered when calmed down a sweet Princess Charlotte during a tantrum? Or when she turned Prince George's frown upside down in Poland? It sounds like Pippa can lean on her big sister when it comes to parenting advice!

 

 

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