Christina Applegate - Christina Applegate's Jealous Dog Worry

Christina Applegate worries her dog will be jealous of her baby.

The 'Cats & Dogs: The Revenge of Kitty Galore' actress - who recently announced she is expecting her first child with fiance Martyn Lenoble - can't wait to welcome the infant into the world, but is already preparing for problems with her beloved pooch.

She told America's OK! magazine: "I am worried about my dog. I think she is going to have problems.

"She is attached to me and at the house, there is a never a moment that she isn't next to me so I will have to be careful when the baby comes."

Although she is enjoying being pregnant, the 38-year-old star admits she is struggling to get to grips with her changing shape.

Pointing at her stomach, she joked: "I can't wait to get rid of this!"

Christina also revealed she feels her wardrobe is a "disaster" now she is pregnant.

She said: "It's a disaster! Picking something to wear is a disaster! My a*s is as big as my stomach, so nothing really fits right!

"You have to go through a lot of different styles and shapes to see what looks right on you."

The blonde beauty has not disclosed when she is due to give birth, insisting she wants to keep the information "private".