Duchess Meghan was a ‘nervous wreck’ until this moment at the Royal Wedding

Even someone marrying a prince can have pre-wedding jitters! Duchess Meghan (nee Markle) was “super stressed” for the week leading up to her royal nuptials to Prince Harry, a source exclusively tells Us Weekly.

“She was a nervous wreck the morning of the wedding, but once she got through the vow part, she calmed down,” the source explains. “She was happy during the reception and was able to relax.”

Meghan, 36, and Harry, 33, exchanged vows at St George’s Chapel at Windsor Castle in England on Saturday, May 19. The former Suits star hid her nerves well as she walked down the aisle with Prince Charles in her stunning Clare Waight Keller for Givenchy dress in front of approximately 600 guests and the 29.2 Americans watching at home.

RELATED: Best photos from the big day 

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The best photos from Meghan and Harry's royal wedding
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The best photos from Meghan and Harry's royal wedding

Prince Harry, Duke of Sussex and the Duchess of Sussex hold hands in the Ascot Landau Carriage as their carriage procession rides along the Long Walk, on May 19, 2018 after their wedding ceremony.

(Photo by Yui Mok - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex emerge from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Ben Birchall / POOL / AFP) 

Ms. Meghan Markle walks down the aisle at the start of her wedding to Prince Harry in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Danny Lawson - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex leave from the West Door of St George's Chapel, Windsor Castle, in Windsor on May 19, 2018 in Windsor, England.

(Photo by Ben STANSALL - WPA Pool/Getty Images)

The Duke and Duchess of Sussex on the steps of St George's Chapel at Windsor Castle following their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Danny Lawson - WPA Pool/Getty Images)

Prince Harry, Duke of Sussex and The Duchess of Sussex leave St George's Chapel, Windsor Castle after their wedding ceremony on May 19, 2018 in Windsor, England.

(Photo by Andrew Matthews - WPA Pool/Getty Images)

Princess Charlotte sticks out her tongue as she rides in a car to the wedding of Prince Harry and Meghan Markle at St George's Chapel in Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Andrew Milligan - WPA/Getty Images)

Britain's Prince Harry, Duke of Sussex kisses his wife Meghan, Duchess of Sussex as they leave from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Danny Lawson / POOL / AFP)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex wave from the Ascot Landau Carriage during their carriage procession on Castle Hill outside Windsor Castle in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Paul ELLIS / POOL / AFP) 

US actress Meghan Markle, accompanied by Britain's Prince Charles, Prince of Wales walks down the aisle toward her husband-to-be Britain's Prince Harry, Duke of Sussex, in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony.

(Photo by Dominic Lipinski / POOL / AFP)

Meghan Markle and her mother, Doria Ragland, are driven along the Long Walk as they arrive for her wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018.

(Photo by EMMANUEL DUNAND / AFP) 

Prince Harry and Meghan Markle during their wedding service, conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Dominic Lipinski - WPA Pool/Getty Images)

Princess Charlotte on the steps of St George's Chapel after the wedding of Prince Harry and Meghan Markle in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Jane Barlow - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex emerge from the West Door of St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 after their wedding ceremony.

(Photo by Ben STANSALL / POOL / AFP) 

Meghan Markle is driven to St George's Chapel in Windsor Castle along with her page boys Brian and John Mulroney at St George's Chapel at Windsor Castle before the wedding of Prince Harry to Meghan Markle on May 19, 2018 in Windsor, England.

(Photo by Toby Melville- WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and Meghan Markle, Duchess of Sussex, stand together at the altar in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony.

(Photo by Dominic Lipinski / POOL / AFP)

Prince Harry, arrives with his best man Prince William, Duke of Cambridge for the wedding ceremony of Prince Harry and US actress Meghan Markle at St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England.

(Photo by Odd Anderson - WPA Pool/Getty Images)

Britain's Prince Harry, Duke of Sussex and his wife Meghan, Duchess of Sussex arrive back at Windsor Castle in the Ascot Landau Carriage after their wedding ceremony and after their procession in Windsor, on May 19, 2018.

(Photo by Steve Parsons / POOL / AFP)

Meghan Markle's mother Doria Ragland, Britain's Prince Charles, Prince of Wales and Britain's Camilla, Duchess of Cornwall leave the wedding ceremony of Britain's Prince Harry, Duke of Sussex and Meghan Markle.

(Photo by Ben STANSALL / POOL / AFP) 

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Following the ceremony, Harry, Meghan and their 600 guests attended a luncheon hosted by Queen Elizabeth IIat St George’s Hall. After a quick change, the couple, who announced their engagement in November 2017, got to let loose at their second reception hosted by Prince Charles.

The more private celebration, which included 200 of the bride and groom’s closet family and friends, included fireworks, dancing and a special bartender — George Clooney! The Oscar winner hopped behind the bar and served drinks, including his Casamigos tequila. Other celebrity faces at the reception included Serena Williams, Priyanka Chopra and Idris Elba, who served as the party’s DJ.

Meghan, Harry and his best friend, Charlie van Straubenzee, all gave a speeches at the event. A source told Us that the “entire room was cracking up” during van Straubenzee’s speech when he “brought up Harry’s tabloid antics and made fun of his hair loss.”

The newlyweds, who were spotted in dark sunglasses as they returned to Kensington Palace two days after the wedding, made their first official appearance as a married couple on Tuesday, May 22, at an early birthday celebration for Prince Charles.

RELATED: See more of her wedding dress 

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Meghan Markle stuns in wedding gown
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Meghan Markle stuns in wedding gown
US actress Meghan Markle arrives for the wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Ben Birchall / POOL / AFP) (Photo credit should read BEN BIRCHALL/AFP/Getty Images)
Meghan Markle arrives at St George's Chapel at Windsor Castle for her wedding to Prince Harry.
US actress Meghan Markle arrives for the wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Andrew Matthews / POOL / AFP) (Photo credit should read ANDREW MATTHEWS/AFP/Getty Images)
Meghan Markle arrives at St George's Chapel at Windsor Castle for her wedding to Prince Harry.
Pageboys hold the train of the dress of Meghan Markle as she arrives at St George's Chapel at Windsor Castle for her wedding to Prince Harry.
US actress Meghan Markle arrives for the wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Ben STANSALL / POOL / AFP) (Photo credit should read BEN STANSALL/AFP/Getty Images)
Meghan Markle and her bridal walk down the aisle of St George's Chapel at Windsor Castle for her wedding to Prince Harry.
Prince Harry looks at his bride, Meghan Markle, as she arrives accompanied by the Prince of Wales in St George's Chapel at Windsor Castle for their wedding.
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, (L) and US fiancee of Britain's Prince Harry Meghan Markle arrive at the High Altar for their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jonathan Brady / POOL / AFP) (Photo credit should read JONATHAN BRADY/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Meghan Markle arrives at St George's Chapel at Windsor Castle for her wedding to Prince Harry on May 19, 2018 in Windsor, England. (Photo by Brian Lawless - WPA Pool/Getty Images)
WINDSOR, ENGLAND - MAY 19: Meghan, Duchess of Sussex in the Ascot Landau carriage during the procession on The Long Walk after getting married St George's Chapel, Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Richard Heathcote/Getty Images)
Britain's Prince Harry, Duke of Sussex (L) and Britain's Meghan Markle, Duchess of Sussex, (R) walk away from the High Altar toward the West Door to exit at the end of their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex leave St George's Chapel, Windsor Castle after their wedding ceremony on May 19, 2018 in Windsor, England. (Photo by Andrew Matthews - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle leave St George's Chapel after their wedding in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Ben Birchall - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Meghan Markle stands at the altar during her wedding in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jonathan Brady - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry, Duke of Sussex and The Duchess of Sussex leave St George's Chapel, Windsor Castle after their wedding ceremony on May 19, 2018 in Windsor, England. (Photo by Andrew Matthews - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, (L) and US fiancee of Britain's Prince Harry Meghan Markle arrive at the High Altar for their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jonathan Brady / POOL / AFP) (Photo credit should read JONATHAN BRADY/AFP/Getty Images)
TOPSHOT - Britain's Prince Harry, Duke of Sussex, (L) and US fiancee of Britain's Prince Harry Meghan Markle arrive at the High Altar for their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jonathan Brady / POOL / AFP) (Photo credit should read JONATHAN BRADY/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry lifts the veil of Meghan Markle during their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry looks at his bride, Meghan Markle during their wedding service conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, (L) and US fiancee of Britain's Prince Harry Meghan Markle arrive at the High Altar for their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jonathan Brady / POOL / AFP) (Photo credit should read JONATHAN BRADY/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Meghan Markle smiles during her wedding to Prince Harry in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jonathan Brady - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex, (L) and US fiancee of Britain's Prince Harry Meghan Markle arrive at the High Altar for their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Jonathan Brady / POOL / AFP) (Photo credit should read JONATHAN BRADY/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Meghan Markle smiles during her wedding to Prince Harry in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jonathan Brady - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex (L) and US fiancee of Britain's Prince Harry Meghan Markle stand together for their wedding in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex (L) sits with US actress Meghan Markle (R) during the reading in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding ceremony in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Owen Humphreys - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding service, conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry and Meghan Markle during their wedding service, conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Dominic Lipinski - WPA Pool/Getty Images)
Britain's Prince Harry, Duke of Sussex (L) sits with US actress Meghan Markle (R) during the reading in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018 during their wedding ceremony. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
Britain's Prince Harry, Duke of Sussex (R) and US actress Meghan Markle (L) stand facing each other hand-in-hand before Archbishop of Canterbury Justin Welby (C) during their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
Britain's Prince Harry, Duke of Sussex (R) and US actress Meghan Markle (L) stand facing each other hand-in-hand before Archbishop of Canterbury Justin Welby (C) during their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Owen Humphreys / POOL / AFP) (Photo credit should read OWEN HUMPHREYS/AFP/Getty Images)
Britain's Prince Harry, Duke of Sussex (L) and US fiancee of Britain's Prince Harry Meghan Markle stand together at the High Altar during their wedding ceremony in St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Dominic Lipinski / POOL / AFP) (Photo credit should read DOMINIC LIPINSKI/AFP/Getty Images)
WINDSOR, UNITED KINGDOM - MAY 19: Prince Harry places the wedding ring on the finger of Meghan Markle during their wedding service, conducted by the Archbishop of Canterbury Justin Welby in St George's Chapel at Windsor Castle on May 19, 2018 in Windsor, England. (Photo by Jonathan Brady - WPA Pool/Getty Images)
Prince Harry and Meghan Markle in St George's Chapel at Windsor Castle during their wedding.
WINDSOR, ENGLAND - MAY 19: Meghan Markle (R) with her mother Doria Ragland arrive at Windsor Castle ahead of her wedding to Prince Harry on May 19, 2018 in Windsor, England. Prince Henry Charles Albert David of Wales marries Ms. Meghan Markle in a service at St George's Chapel inside the grounds of Windsor Castle. Among the guests were 2200 members of the public, the royal family and Ms. Markle's Mother Doria Ragland. (Photo by Samir Hussein/WireImage)
WINDSOR, ENGLAND - MAY 19: Meghan Markle with her mother Doria Ragland (unseen) drive down the Long Walk as they arrive at Windsor Castle ahead of her wedding to Prince Harry on May 19, 2018 in Windsor, England. (Photo by Richard Heathcote/Getty Images)
Meghan Markle (R) and her mother, Doria Ragland, arrive for her wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Oli SCARFF / AFP) (Photo credit should read OLI SCARFF/AFP/Getty Images)
Meghan Markle leaves the Cliveden House Hotel, accompanied by her mother, Ms Doria Ragland, ahead of her wedding to Prince Harry at St George's Chapel at Windsor Castle.
Page boys John and Brian Mulroney accompany US actress Meghan Markle as she arrives in a car for the wedding ceremony to marry Britain's Prince Harry, Duke of Sussex, at St George's Chapel, Windsor Castle, in Windsor, on May 19, 2018. (Photo by Chris Radburn / POOL / AFP) (Photo credit should read CHRIS RADBURN/AFP/Getty Images)
Meghan Markle leaves the Cliveden House Hotel, accompanied by her mother, Ms Doria Ragland, ahead of her wedding to Prince Harry at St George's Chapel at Windsor Castle.
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