Christina Applegate used to star on Married ... With Children -- now she's engaged ... and expecting.

A radiant Applegate showed off her growing baby bump at the Los Angeles premiere of Cats & Dogs: The Revenge Of Kitty Galore Sunday, and Breaking Celebrity News has all the pictures for you. 

The 38-year old Emmy-winner is engaged to the father of her child, Porno For Pyros bassist Martyn Lenoble, 41. Both have both been married once before.