Can you say dedication?!

We caught Hilary Duff leaving yet another gym session in Century City on Thursday, and the Lizzie Maguire star sure isn't messing around with her post-pregnancy weight loss routine!

Maybe the 24-year-old new mom is getting her body in tip top shape for a new role?! Mrs. Mike Comrie tweeted, "So excited about my new agents at Gersh! Great meeting today! Now Luca and I are off to the doctor to get his first shot! Poor guy!"

Good thing Hil's hubby just retired from the NHL, because it sounds like his wifey is about to be one busy lady!

Dressed in head-to-toe black, new mom Hilary Duff was positively glowing as she carried her matching Hermes Birkin to the Art Institute of California in Hollywood, on Tuesday afternoon.

The former Disney star has been embracing her post-baby curves by dressing in figure flattering tops and tight pants, but she's still determined to get those extra pounds off! Duff has been religiously hitting up Soulcycle classes in Hollywood, which focuses on full-body workouts that target the core while toning the upper body.

Hil is also gearing up to record a new album, and release another novel by the end of the year!

Little Luca Cruz is just 2 moths old, but he's already hitting the Hollywood party scene!

Proud mom Hilary Duff looked fierce in hot pink pants, a white tee and layers of colorful necklaces as she toted her $3,000 Celine black leather bag, while hubby Mike Comrie carried their baby son to a daytime fiesta in LA, on Saturday afternoon.

Aside from spending all her time with baby Luca, the former Disney star has been busy working on her upcoming album, and she's also planning to release a new book by the end of the year.

After undergoing three operations on his hip, Mike has officially retired from his career as an ice hockey player, and he's now on 24-hour diaper duty while also learning to cook for his new family!

Electric pink pants are definitely one way of catching our attention!

Hilary Duff spent some time at a friend's house in the valley today, and she flashed us a sweet smile as she got in her car to head home to baby Luca.

Hil gave birth to her son less than two months ago, so we have to applaud her for having the guts to step out in colorful skinny jeans and a sheer white top! And we know she's busting her butt at Pilates, so we're confident she'll have her pre-pregnancy figure back in no time...

Twitter

We can't believe baby Luca is already 2 months old -- he's getting so big!

New mom Hilary Duff shared a Twitpic of her growing baby boy, who sported an adorable banana peel onesie, with the caption: "Me and my beautiful boy! So much to be thankful for!"

The former Disney star and her hockey player hubbie, Mike Comrie, welcomed baby Luca Cruz on March 20, and he's been getting smothered with attention ever since!

Duff recently confessed via Twitter: "Babies smell soo good!! I can't get enough. Poor guy gets loved on so much.... I wonder if he ever feels like ‘yo mom, dad give me some space!’"

The Beauty and the Briefcase star has been working overtime to lose the baby weight since Luca's arrival, taking a combination of SoulCycle, and pilates to regain her post-baby 'bod.

We think Hil looks better than ever!

You go, girl!

New mom Hilary Duff is back into her skinny jeans and the platform wedges are back in action!

Didn't take long for the 24-year-old to drop most of the baby weight after giving birth to son Luca Cruz just six weeks ago. All that time at the gym is paying off!

Nothing sheds the pounds quite like an old fashioned sweat session, and nobody knows that better than the Duffster!

We spotted Hilary Duff exiting an LA gym Sunday after yet another workout, and the Lizzie Maguire star must really be taking her weight loss seriously, because she was covered in sweat and red in the face! The new mom isn't like other Hollywood starlets who wear a full face of makeup, either! The 24-year-old went au naturel and looked a little bit exhausted, but who can blame her?!

Keeping with the cleansing approach, baby Luca's mommy toted a handful of organic juices on the way out. Looks like someone is taking a page from the Nicole Richie book of post-baby slimdowns!

We doubt Mrs. Mike Comrie had to do any weight lifting, though, since she wore her gigantic wedding rock!

Hilary Duff and hubby Mike Comrie hit up the Hollywood Bowl for a date night at the Coldplay concert without newborn son Luca. Good for them!

The new mom, who kept it casual in black stretch pants and a grey sweater, looked thrilled to be out with her man.

Nothing like a romantic night under the stars!