Pregnant Duchess Kate criticized by internet trolls over her 'too thin' appearance

Duchess Kate's first appearance since announcing she's pregnant with baby No. 3 has left her fans concerned about her health.

The 35-year-old glowed in a lace Temperley London frock -- a look that got rave reviews from fashionistas and non-fashionistas alike -- but she received unwarranted remarks from body shamers who commented on her figure.

15 PHOTOS
Duchess Kate's first public appearance since announcing baby No. 3
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Duchess Kate's first public appearance since announcing baby No. 3
The Duke and Duchess of Cambridge attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duchess of Cambridge attends a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duke and Duchess of Cambridge attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duke and Duchess of Cambridge attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duke and Duchess of Cambridge attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duke and Duchess of Cambridge attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
The Duchess of Cambridge and Prince Harry attend a reception on World Mental Health Day at Buckingham Palace, London, to celebrate the contribution of those working in the mental health sector across the UK.
Britain's Catherine, Duchess of Cambridge attends a reception at Buckingham Palace to celebrate World Mental Health Day in central London on October 10, 2017 / AFP PHOTO / POOL / Heathcliff O'Malley (Photo credit should read HEATHCLIFF O'MALLEY/AFP/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 10: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge support World Mental Health Day at Buckingham Palace on 10, October 2017 in London, England. (Photo by Heathcliff O'Malley - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge attends a reception at Buckingham Palace to celebrate World Mental Health Day in central London on October 10, 2017 / AFP PHOTO / POOL / Heathcliff O'Malley (Photo credit should read HEATHCLIFF O'MALLEY/AFP/Getty Images)
LONDON, UNITED KINGDOM - OCTOBER 10: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge support World Mental Health Day at Buckingham Palace on 10, October 2017 in London, England. (Photo by Heathcliff O'Malley - WPA Pool/Getty Images)
Britain's Catherine, Duchess of Cambridge takes part in a reception at Buckingham Palace to celebrate World Mental Health Day in central London on October 10, 2017 / AFP PHOTO / POOL / Heathcliff O'Malley (Photo credit should read HEATHCLIFF O'MALLEY/AFP/Getty Images)
Britain's Catherine, Duchess of Cambridge takes part in a reception at Buckingham Palace to celebrate World Mental Health Day in central London on October 10, 2017 / AFP PHOTO / POOL / Heathcliff O'Malley (Photo credit should read HEATHCLIFF O'MALLEY/AFP/Getty Images)
Britain's Prince William (L), Duke of Cambridge and Catherine, Duchess of Cambridge attend a reception at Buckingham Palace to celebrate World Mental Health Day in central London on October 10, 2017 / AFP PHOTO / POOL / Heathcliff O'Malley (Photo credit should read HEATHCLIFF O'MALLEY/AFP/Getty Images)
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If you can believe it, considering she's been suffering for months from extremely severe morning sickness, internet trolls took to social media to call Prince William's wife "too thin."

"I can't believe she's prego," one commenter said on Kensington Palace's Instagram account. Another asked: "I thought she was pregnant?"



However, other fans also expressed genuine concern about the Duchess' health. The mother of two has been suffering from hyperemersis gravidarum, a severe form of morning sickness.

"She's so thin. I hope she's doing better," one user wrote.

Lesley Gilchrist, a practicing midwife and co-founder of "My Expert Midwife," revealed to DailyMail that "bump shaming" can cause anxiety for expectant mothers.

32 PHOTOS
Duchess Kate's love of lace dresses
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Duchess Kate's love of lace dresses
LONDON, ENGLAND - MARCH 28: Catherine, Duchess of Cambridge arrives at the 2017 Portrait Gala at National Portrait Gallery on March 28, 2017 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
ASCOT, ENGLAND - JUNE 20: Catherine, Duchess of Cambridge arrives by carriage at Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England. (Photo by Samir Hussein/Samir Hussein/WireImage)
The Duchess of Cambridge during a tea party at Buckingham Palace for the children of Armed Forces men and women who died serving their country.
Catherine, Duchess of Cambridge, wearing a red embellished tulle midi dress by Marchesa Notte, attends the opening night of 42nd Street in aid of EACH at the Theatre Royal Drury Lane in London on April 4, 2017.
The Duchess of Cambridge (centre) attends a reception at the British Embassy in Paris, during an official visit to the French capital city.
The Duke and Duchess of Cambridge along with Prince Harry arriving at the ICA for a Heads Together charity London Marathon event, London. Photo credit should read: Doug Peters/EMPICS Entertainment
The Duchess of Cambridge with her children Prince George and Princess Charlotte at a children's party for Military families at Government House in Victoria during the Royal Tour of Canada.
The Duchess of Cambridge at the Kitsilano Coast Guard Station, in Vancouver, Canada, during the second day of the Royal Tour to Canada.
LONDON, ENGLAND - NOVEMBER 03: Catherine, Duchess of Cambridge, attends the UK Premiere of 'A Street Cat Named Bob' in aid of Action On Addiction at The Curzon Mayfair on November 3, 2016 in London, United Kingdom. (Photo by David M. Benett/Dave Benett/WireImage)
The Duchess of Cambridge meets Prime Minister of India Narenda Mod in New Delhi's Hyderabad House during day three of the royal tour to India and Bhutan.
PARO, THINBHU - APRIL 16: Catherine, Duchess of Cambridge departs Bhutan from Paro Airport on April 16, 2016 in Paro, Bhutan. (Photo by Samir Hussein/WireImage)
LONDON, UNITED KINGDOM - JUNE 10: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend a national service of thanksgiving to mark Queen Elizabeth II's 90th birthday at St Paul's Cathedral on June 10, 2016 in London, England. (Photo by Max Mumby/Indigo/Getty Images)
LONDON, ENGLAND - MARCH 14: Catherine, Duchess of Cambridge attends the Commonwealth Observance Day Service on March 14, 2016 in London, United Kingdom. The service is the largest annual inter-faith gathering in the United Kingdom and will celebrate the Queen's 90th birthday. Kofi Annan and Ellie Goulding will take part in the service. (Photo by Samir Hussein/WireImage)
LONDON, ENGLAND - NOVEMBER 07: Catherine, Duchess of Cambridge arrives at the Royal Albert Hall for the Annual Festival of Remembrance on November 7, 2015 in London, England. (Photo by Chris Jackson - WPA Pool/Getty Images)
ASCOT, UNITED KINGDOM - JUNE 15: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge attends day 2 of Royal Ascot at Ascot Racecourse on June 15, 2016 in Ascot, England. (Photo by Max Mumby/Indigo/Getty Images)
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a creative industry event to celebrate cultural collaboration between the UK and China at Lancaster House in London (Photo by Zak Hussein/Corbis via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 13: Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge leaving the Royal Variety Performance at the Palladium Theatre on November 13, 2014 in London, England. (Photo by Mark Robert Milan/FilmMagic)
CANBERRA, AUSTRALIA - APRIL 24: (NO UK SALES FOR 28 DAYS) Catherine, Duchess of Cambridge attends a reception hosted by the Governor General Peter Cosgrove at Government House on April 24, 2014 in Canberra, Australia. The Duke and Duchess of Cambridge are on a three-week tour of Australia and New Zealand, the first official trip overseas with their son, Prince George of Cambridge. (Photo by Pool/Samir Hussein/WireImage)
LONDON, UNITED KINGDOM - DECEMBER 11: Catherine, Duchess of Cambridge, wearing a black lace Temperley evening gown for the third time, attends the screening of David Attenborough's Natural History Museum Alive 3D at the Natural History Museum on December 11, 2013 in London, England. (Photo by Anwar Hussein/WireImage)
LONDON, ENGLAND - NOVEMBER 28: Catherine, Duchess of Cambridge attends the annual SportsAid dinner at Victoria Embankment Gardens on November 28, 2013 in London, England. (Photo by Mark Cuthbert/UK Press via Getty Images)
LONDON, UNITED KINGDOM - NOVEMBER 08: Catherine, Duchess of Cambridge accompanied by her Private Secretary Rebecca Deacon attends a gala dinner in aid of the University of St. Andrews 600th Anniversary Campaign at Middle Temple Hall on November 08, 2012 in London, England. (Photo by Indigo/Getty Images)
KUALA LUMPUR, MALAYSIA - SEPTEMBER 14: Catherine, Duchess of Cambridge attends a tea party at the British High Commission on day 4 of Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge's Diamond Jubilee Tour of the Far East on September 14, 2012 in Kuala Lumpur, Malaysia. Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge are on a Diamond Jubilee Tour of the Far East taking in Singapore, Malaysia, the Solomon Islands and the tiny Pacific Island of Tuvalu. (Photo by Danny Lawson - Pool/Getty Images)
LONDON, UNITED KINGDOM - JUNE 05: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge attend a Service of Thanksgiving to celebrate Queen Elizabeth II's Diamond Jubilee at St Paul's Cathedral on June 5, 2012 in London, England. For only the second time in its history the UK celebrates the Diamond Jubilee of a monarch. Her Majesty Queen Elizabeth II celebrates the 60th anniversary of her ascension to the throne. Thousands of wellwishers from around the world have flocked to London to witness the spectacle of the weekend's celebrations. (Photo by Indigo/Getty Images)
LONDON, UNITED KINGDOM - MAY 11: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 48 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge arrives at 'Our Greatest Team Rises - BOA Olympic Concert' at Royal Albert Hall on May 11, 2012 in London, England. (Photo by Indigo/Getty Images)
LONDON, ENGLAND - MAY 11: Catherine, Duchess of Cambridge arrives at 'Our Greatest Team Rises -BOA Olympic Concert' at the Royal Albert Hall on May 11, 2012 in London, England. (Photo by Chris Jackson/Getty Images)
LONDON, ENGLAND - JANUARY 08: Catherine, Duchess of Cambridge attends the UK premiere of War Horse at Odeon Leicester Square on January 8, 2012 in London, England. (Photo by Tim Whitby/Getty Images)
LONDON, ENGLAND - DECEMBER 06: Catherine, Duchess of Cambridge arrives for a Gary Barlow Concert in support of The Prince's Trust, at the Royal Albert Hall on December 6, 2011 in London, England. (Photo by Chris Jackson/Getty Images)
QUEBEC CITY, QC - JULY 03: Catherine, Duchess of Cambridge attends a Freedom of the City Ceremony outside City Hall on July 3, 2011 in Quebec, Canada. (Photo by George Pimentel/WireImage)
OTTAWA, ON - JUNE 30: Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge attend the wreath laying ceremony at the National War Memorial on day 1 on the Royal Couple's North American Tour on June 30, 2011 in Ottawa, Canada. (Photo by Samir Hussein/WireImage)
Prince William, Duke of Cambridge and Catherine, Duchess of Cambridge greet wellwishers from the balcony next to Grace Van Cutsem (L) and Margarita Armstrong-Jones at Buckingham Palace on April 29, 2011 in London, England.
WINDSOR, UNITED KINGDOM - NOVEMBER 20: (EMBARGOED FOR PUBLICATION IN UK NEWSPAPERS UNTIL 24 HOURS AFTER CREATE DATE AND TIME) Catherine, Duchess of Cambridge and Prince William, Duke of Cambridge arrive at Windsor Castle to attend Queen Elizabeth II's and Prince Philip, Duke of Edinburgh's 70th wedding anniversary dinner on November 20, 2017 in Windsor, England. (Photo by Max Mumby/Indigo/Getty Images)
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"Bump shaming can really damage a woman's body confidence and cause needless worry and anxiety over the health of their baby. It's important to remember that the bump size is just the size of the baby's "packaging" and has no bearing on the size of their baby," she told the outlet.

The Duchess of Cambridge has stayed out of the spotlight since announcing her pregnancy -- even missing George's first day of school -- due to her morning sickness.

The condition affects about one in every 200 pregnancies and results in severe nausea, dehydration, and low blood pressure, among other things.

Prince William revealed that Kate has been trying to eat ginger biscuits to alleviate her morning sickness. The Duke also hinted that their bundle of joy maybe coming sooner rather than later while talking to a midwife.

18 PHOTOS
Duchess Kate's style before she became a royal
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Duchess Kate's style before she became a royal

Kate Middleton right before her graduation ceremony in 2005 rocking an oh-so-reliable white tank top (with a little bit of her tummy showing) and bootcut jeans.

(Getty)

Howdy! Here's Kate Middleton at a music festival in 2005 looking very outdoorsy in a cowboy hat with some matching suede riding boots. 

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Kate Middleton definitely rocked cropped tops before it was even a trend! Here she is with her mom, Carole, in a simple white crop top that she paired underneath a blue blazer.

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Here's a full-length photo of her casual -- yet -- stylish look.

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Kate Middleton braved the frigid temps in 2006 with a cozy outfit of a Russian-style fur hat, a wool coat and a pair of her go-to suede boots.

(Getty)

CHELTENHAM, ENGLAND - MARCH 17: Prince William's girlfriend, Kate Middleton wears a Russian style fur hat to the final day of Cheltenham Races on March 17, 2006 in Cheltenham, England. (Photo by Tim Graham/Getty Images)

Polka dot beauty! Kate Middleton cheered her future husband Prince William on at a polo match in 2006 in a bright red wrap dress.

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Flower power! Kate Middleton attended a 2006 party in a floral frock that hit just above her knees. She paired the look with a light pink crushed velvet jacket and some seriously pointy flats.

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Kate Middleton's off-duty style was impeccable. At another polo match in 2006, she rocked white flared jeans and a tummy-bearing sheer top.

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A close-up look at Kate's super casual ensemble.

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Kate Middleton looked fabulous in a black dress with tights and suede knee-high boots while out on the town in 2007.

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Kate Middleton made denim skirts a thing before they even became trendy. Here she is on a casual shopping trip in 2007.

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What a party animal! Before becoming a royal, Kate Middleton was just a regular 20-something who went out at the hottest clubs in London. Of course, she always looked great for the occasion. 

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Before Kate Middleton was wearing tiaras and fancy pearls, she was the queen of accessorizing. Between the scarf and the French-inspired beret, she looked absolutely flawless in 2007.

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Another close up look of Kate's chic accessorizing.

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Uggs -- oh my! Even Kate Middleton couldn't resist the comfy boots that blew up in popularity in the early 2000s. Here she is in 2007.

(Getty)

While Kate rocks multi-million dollar jewels now, she still loved to accessorize even before she became a royal. We're totally loving that chunky white necklace!

(Getty)

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