- 13 updates
St James's Palace says the royal couple had only become aware of the pregnancy "recently".
It is believed that the pregnancy has not passed the 12 week point and the announcement was prompted by the Duchess's medical condition, according to the Press Association.
The Duchess of Cambridge is expecting a baby, St James's Palace has confirmed.
The Duke and Duchess live on Anglesey, where Prince William works as an RAF search and rescue helicopter pilot at RAF Valley.