Katie Middleton and Prince William are expecting baby number three, Kensington Palace have confirmed.
The confirmed it in a statement on Twitter, which read: "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.
This will be the Duke and Duchess of Cambridge’s third child. They already have George, 4, and Charlotte, 2.