Hilary Duff Enjoying Peace and Quiet Before Baby's Birth

Hilary Duff leaves a Pilates class on Tuesday (September 27) in Toluca Lake, Calif.

The actress and mama-to-be is celebrating her 24th birthday tomorrow – happy early birthday, Hil!

PHOTOS: Check out the latest pics of Hilary Duff

“Just laying in bed with Mike and some of the pups.Enjoying how [quiet] it is.Don’t think it will last long with this little bambino on the way:),” Hil wrote on her Twitter account.

Back in August, Hil and hubby Mike Comrie announced that they were expecting their first child together.