In a historic move, Charlotte will remain fourth-in-line to the throne.
The Duke and Duchess of Cambridge announced the news in a statement through Kensington Palace.
The couple arrived at St. Mary's Hospital early Monday morning.
The Duchess of Cambridge is expecting her third child with Prince William.
The 34-year-old sister of Kate Middleton is reported to be expecting her first child with husband James Matthews.
ET breaks down all the latest updates from the couple ahead of their May 19 nuptials!
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The Duke of Cambridge stepped out for Commonwealth Heads of Government Meeting events on Tuesday.
Is the couple expecting a Jack... or Jackie?
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The actress appears in the upcoming ITV special, 'The Queen's Green Planet.'
Take a look these royals who broke with custom and married outside of their titled rank.
On Monday, workers started putting up media barricades on the street outside the Lindo Wing of St. Mary's Hospital in London, where Kate is scheduled to give birth.
