Hilary Duff: Luca's First Class!

Hilary Duff carries her adorable baby boy Luca to Babies First Class on Wednesday (October 3) in Sherman Oaks, Calif.

The day before, the 25-year-old actress prepared to break a sweat as she arrived at her pilates class in Studio City.

PHOTOS: Check out the latest pics of Hilary Duff

Hilary dropped by her sister Haylie‘s Venice Beach house after her pilates workout.

Over the weekend, Hilary shared how she celebrated her birthday. She tweeted, “such a fun birthday at #TheLibrary @TheRedbury last night! loved seeing all of my favorite people! thanks for helping @sbeCollection :).”

10+ pictures inside of Hilary Duff taking Luca to class…