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The UK royal family's reps revealed on Dec. 3, 2012 that Kate Middleton, aka Catherine, Duchess of Cambridge, is pregnant with her and Prince William's first child, who may become the heir to the British throne.
They also said the duchess had checked into a hospital to undergo treatment for severe morning sickness, which is technically referred to as Hyperemesis Gravidarum. She was released days after the announcement.
(Pictured: Prince William appears to reject an umbrella, as his wife Kate accepts one on the red carpet of the UK premiere of 'War Horse' in London on Sunday, Jan. 8, 2012.)