Kate's Pregnancy: Is She Having Twins?


The royal couple has something extra to be thankful for this holiday season.

Related: Prince William & Kate Middleton Expecting a Baby

Prince William and his bride Kate, The Duchess of Cambridge, announced they're expecting a baby in the coming months. Tomorrow, ET breaks down all of the exciting details including rumors that the mother-to-be is pregnant with twins.

Also Tuesday, Melissa McCarthy's Vanity Fair exclusive!