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(NECN/AP/NBC News: Kier Simmons, London ) - Britain doesn't have to wait any longer: Prince William's wife, Kate, is pregnant.
St. James's Palace made the announcement Monday, saying that the Duchess of Cambridge - formerly Kate Middleton - has a severe form of morning sickness and is currently in a London hospital.
William was at his wife's side.
The news drew congratulations from around the world, with the hashtag: "#royalbaby" trending globally on Twitter.
The couple's first child will be third in line to the throne - behind William and his father, Prince Charles - leapfrogging the gregarious Prince Harry and possibly setting up the first scenario in which a female heir could benefit from new gender rules about succession.
The palace would not say how far along the 30-year-old duchess is, only that she has not yet reached the 12-week mark.
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