Hilary Duff baby luca tight denim

He's so cute!

Today Hilary Duff and baby Luca ran errands in Los Angeles, and the 25-year-old starlet recently opened up to Parents Magazine about life as a mom and how much of a challenge it is to lose the weight she gained during her pregnancy.

"I mean there are photographers following me every day," Hil says. "So you feel the pressure because of what people write about you. Not that they're personal attacks, but obviously, when you see "Hilary Debuts Post-Baby Body!" you want to tell people, "No, actually, I was just going out to get a coffee." There are some women who look the same right after -- I think they are freaks of nature! I don't know how that happens. I'm not one of those people. It takes your body nine months to get there -- really ten months. So I'm trying to be patient but I'm working hard. And I think now more than ever, I appreciate my body and what it's done for me."