FILE - In this Friday April 29, 2011 file photo Britain's Prince William and his bride Kate, Duchess of Cambridge, leave Westminster Abbey, London, following their wedding. The Duke and Duchess of Cambridge are very pleased to announce that the Duchess of Cambridge is expecting a baby, St James's Palace officially announced Monday Dec. 3, 2012. (AP Photo/Martin Meissner, File)
LONDON (AP) -- The Duchess of Cambridge has left a London hospital where she was being treated for acute morning sickness related to her pregnancy.
The former Kate Middleton smiled as she left the King Edward VII Hospital Thursday alongside her husband, Prince William.
The couple's office said she would head to Kensington Palace in London for a period of rest.
Royal officials have said Kate is less than 12 weeks pregnant with her first child.