Hilary Duff Tweets New Luca Pic!

Check out this adorable new picture of Hilary Duff and Mike Comrie‘s baby boy Luca, posted to her Instagram account!

“LUCA!” the 24-year-old actress tweeted, along with a link to the pic.

PHOTOS: Check out the latest pics of Hilary Duff

That same day, Thursday (August 30), Hilary was spotted leaving her trainer’s house and headed to the Antic Store with a pal.

“Am I the only person not knowing about some blue moon tomorrow? What’s happening?” she tweeted the next day. Can you help Hil out????

20+ pictures inside of Hilary Duff leaving her trainer’s house and heading to the Antic Store…