Pictures: Pregnant Meghan Markle Shows Off Burgeoning Baby Bump in New White Dress Photos

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Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex attend a ceremony at Taronga Zoo on October 16, 2018, in Sydney, Australia. The couple announced their first pregnancy on Monday, five months after their wedding. Kristy Wigglesworth – Pool/Getty Images

Meghan Markle and Prince Harry announced Monday they're expecting their first child. The couple, who were married five months ago in a ceremony at Windsor Castle, confirmed the pregnancy rumors as they began their tour through Australia. Rumors that Markle was with child began when Markle wore a long coat to Princess Eugenie's wedding on Friday, and didn't take it off at any time in the public eye.

Prince Harry greeted the Australian crowd by sharing it is Markle's first time visiting the country. He then added the breaking news, Glamour reported. "We also, genuinely, couldn't think of a better place to announce, uh, the upcoming baby, be it a boy or girl, so thank you very much."

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Britain's Meghan, Duchess of Sussex arrives to attend the wedding of Britain's Princess Eugenie of York to Jack Brooksbank at St George's Chapel, Windsor Castle, in Windsor, on October 12, 2018. Rumors of a possible pregnancy began when Markle kept her coat on for the ceremony. GARETH FULLER/AFP/Getty Images

Kensington Palace also addressed the news directly. "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 Palace tweeted Monday. "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."

The new baby will be seventh in line for the throne and join cousins

It's unclear how far along Markle is in her pregnancy, but her bump, when she debuted Monday, is barely visible in her white dress. With the dress, Markle wore a pair of butterfly earrings which belonged to Princess Diana, Harry's mother, People reported. Here are some photos of the mom-to-be and her bump on the day of the announcement.

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Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex are shown a Yellow Bellied Glider during a ceremony at Taronga Zoo on October 16, 2018, in Sydney, Australia. The Duke and Duchess of Sussex are on their official 16-day Autumn tour visiting cities in Australia, Fiji, Tonga and New Zealand. Kristy Wigglesworth – Pool/Getty Images
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Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex walk with Australia's Governor General Peter Cosgrove at Admiralty House on October 16, 2018 in Sydney, Australia. Prince Harry and Markle announced Markle's pregnancy on Monday. Phil Noble - Pool/Getty Images
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Prince Harry, Duke of Sussex and Meghan, Duchess of Sussex look at bush hats with Australia's Governor General Peter Cosgrove and his wife Lynne Cosgrove at Admiralty House on October 16, 2018 in Sydney, Australia. Markle's baby bump is just visible in a white, form-fitting dress. Phil Noble - Pool/Getty Images
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Prince Harry, Duke of Sussex (R) and Meghan, Duchess of Sussex (L) arrive at the Sydney Opera House on October 16, 2018 in Sydney, Australia. The Duke and Duchess of Sussex are on their official 16-day Autumn tour. Mark Metcalfe/Getty Images