Drew Barrymore: 'Family Guy' Guest Star!

Drew Barrymore shows off her huge baby bump as she leaves a pre-natal yoga class on Monday (August 27) in Los Angeles.

The 37-year-old pregnant actress rocked her favorite heart shaped sunglasses as she made her way to her car.

PHOTOS: Check out the latest pics of Drew Barrymore

Drew will soon be returning to the hit animated show Family Guy on a special Valentine’s Day episode, according to EW! Drew will play Jillian, an ex-girlfriend of Brian the dog’s.

Also lending their voice in the ep are Jessica Biel, Jessica Stroup, and more!

15+ pictures inside of pregnant Drew Barrymore leaving yoga class…