(LONDON) -- Prince William and Kate Middleton will be welcoming their first baby this summer, Prince Charles' official London residence announced on Monday.
In a statement, Clarence House said, "Their Royal Highnesses The Duke and Duchess of Cambridge are delighted to confirm they are expecting a baby in July."
The statement continued, "The Duchess's condition continues to improve since her stay in hospital last month."
Middleton spent four days at London's King Edward VII Hospital in December to be treated for hyperemesis gravidarum, or acute morning sickness. St. James' Palace announced her pregnancy on Dec. 3, the same day she was hospitalized.
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