A formal statement followed in a subsequent tweet: "Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child.
"The Queen and members of both families are delighted with the news.
"As with her previous two pregnancies, The Duchess is suffering from Hyperemesis Gravidarum. Her Royal Highness will no longer carry out her planned engagement at the Hornsey Road Children's Centre in London today. The Duchess is being cared for at Kensington Palace.""Their Royal Highnesses The Duke and Duchess of Sussex are very pleased to announce that The Duchess of Sussex is expecting a baby in the Spring of 2019," the couple announced via Kensington Palace's official Instagram account. "Their Royal Highnesses have appreciated all of the support they have received from people around the world since their wedding in May and are delighted to be able to share this happy news with the public."
Middleton often wore patterned maternity dresses and vibrant coats.
The black-and-white shot was taken on an iPad by the Nigerian-born British photographer and longtime friend of the Duchess of Sussex Misan Harriman. It shows the couple relaxing outside, Markle lying on her back with her hand on her baby bump and resting her head on Harry's lap.
"We can confirm that Archie is going to be a big brother. The Duke and Duchess of Sussex are overjoyed to be expecting their second child," a spokesperson for the couple told Insider via email.
The announcement came on Valentine's Day 2021, 37 years to the day after newspapers shared the news that Princess Diana was pregnant with Prince Harry.
She was busy with royal engagements while sporting enviable maternity looks.
Markle's baby shower was reportedly hosted by Serena Williams and Amal Clooney in a $75,000-a-night penthouse suite of The Mark Hotel on Manhattan's Upper East Side in February 2019. She was spotted leaving the hotel after the shower in casual black leggings and a baseball cap. Afterwards, she reportedly had a second baby shower in the UK.
Princess Diana and Prince Charles greeted photographers outside the Lindo Wing of St. Mary's Hospital in London in 1982 after Prince William was born. The prince became the first heir to be born in a hospital in 1982.
Middleton continued the tradition by having all three of her children at the Lindo Wing and posing for photos shortly after giving birth.
It used to be tradition for royal babies to be born at home. Queen Elizabeth had home births for all of her children.
Rumors emerged in April 2019 that the duchess was considering having her child at Frogmore Cottage in Windsor. However, Archie's birth certificate confirmed that Markle gave birth at Portland Hospital at 5:26 a.m. on May 6, 2019.
Their second child is eighth in line for the throne — pushing back Prince Andrew, Princess Beatrice, and Princess Eugenie in the royal line of succession. And since Markle gave birth in America, Lilibet is eligible to serve as president of the United States someday.
Royal births are marked in more traditional ways as well, with a 62-gun salute and an easel set up outside Buckingham Palace.
Harry and Markle created their own Instagram account, @sussexroyal, after splitting their household from the Cambridges. They posted a jubilant "It's a BOY!" birth announcement after Markle gave birth to a son.
They also used the account to wish Prince Louis a happy birthday, though some thought their comment broke royal protocol.
As they began their transition out of royal life in February 2020, Harry and Markle confirmed they would change the name of their brand so it no longer included the word "royal," and stopped posting to their @sussexroyal account.
In April 2020, they rebranded by launching a non-profit organization named Archewell after their son, Archie.
Markle and Harry announced the birth of their daughter in a statement on Archewell's website on June 6, two days after Lilibet was born.
"She is more than we could have ever imagined, and we remain grateful for the love and prayers we've felt from across the globe," the couple said in the statement. "Thank you for your continued kindness and support during this very special time for our family."
Camera flashes can be seen reflected off the glass in the background.
It's the same place they got married.
Since Markle and Harry are no longer affiliated with the royal family, there won't be an official royal introduction this time around.
Harry and Markle shared a photo taken in their backyard to announce their second pregnancy, but the birth announcement did not include a photo, and they're unlikely to hold any kind of press event to introduce their new baby to the public.
About six hours after giving birth to Prince Louis, Middleton and William appeared on the steps of the Lindo Wing for the traditional photo call with their newest addition.
Middleton's personal hairdresser, Amanda Cook Tucker, and her stylist, Natasha Archer, were seen entering the hospital to help her get camera-ready.
According to The New York Post, Markle "felt sorry" for Middleton after she stepped out for photographers just hours after giving birth to Prince Louis.
Before Markle gave birth to Archie, a palace statement said that they would be celebrating the occasion privately before making press appearances.
"Their Royal Highnesses have taken a personal decision to keep the plans around the arrival of their baby private," the statement said. "The Duke and Duchess look forward to sharing the exciting news with everyone once they have had an opportunity to celebrate privately as a new family."
Speaking to reporters after he was born, Harry said they would hold a photo call with the new baby in two days.
"That's the next bit, but for us, we will be seeing you guys in two days time as planned as a family to be able to share it with you guys, so everybody can see the baby," he said.
Princess Charlotte stole the show with her royal wave.
The Duke of Sussex spoke to the media outside Windsor Castle to announce that he and Markle had welcomed a "very healthy boy."
"Mother and baby are doing incredibly well," he said. "It's been the most amazing experience I could ever possibly imagine. How any woman does what they do is beyond comprehension, but we are both absolutely thrilled and so grateful to all the love and support from everybody out there. It's been amazing, we just wanted to share this with everybody."
Packham is one of Middleton's favorite designers, and her go-to for appearances with all three of her newly born children.
She paired the sleeveless blazer dress with nude heels and wore loose curls and natural make-up.
William is definitely a hands-on father who reportedly works out with parents from Prince George's school after dropoff, but Middleton usually held the babies for their first photos.
He held the little one as the couple emerged in George's Hall at Windsor Castle while they chatted with photographers.
