Exclusive: Fergie's Lovely Baby Bump?

We spotted Fergie Ferg and fiance Josh Duhamel leaving Hana Sushi in Santa Monica and either Fergie consumed an entire sushi boat by herself or girlfriend is knocked up!  Her stomach is definitely protruding from under that dress, her belly button is poppin' and her face is looking very full. Guess the song My Humps is about to take on a whole new meaning!  Let's see if this proves true or she's pulling a fast one ala Kate Hudson...