New mom Hilary Duff is already back at the gym, just a week and a half after giving birth.
The 24-year-old singer and actress welcomed her first child with husband Mike Comrie on March 20 and Hilary is already trying to get her pre-baby body back -- but it's not easy.
"20 minutes on the elliptical seems like an eternity!!! What the hell...." Duff tweeted on Saturday.
Duff is trying to get back to her old self and last week was spotted outside for the first time since giving birth. On Thursday, the actress was spotted wearing leopard-print skinny jeans en route to the hair salon. Afterward, she tweeted a photo of her freshly colored hair and gave a shout-out to her stylist on Twitter: "Just got my hair did from my girl Riawna Capri, thanks love! I'm feeling fresh! Heading back home to hang with munchkin :)"
Duff has joined the ever-growing group of young moms in Hollywood and she has been quick to admit that this whole new parenting thing isn't easy. The actress has been sharing her milestones with her fans on Twitter.
Last week she wrote, "1st outing complete with no tears!Made it home early...just in time to feed Luca.figuring this motherhood thing out!Yay! A grown up din;)"
The former "Lizzie McGuire" star is slowly getting used to her new role as a mom, which of course includes 4 a.m. feedings.
"Luca fed! Mamma fed! Time to do it all again in 2 hours! Oh how life has changed! Lol In such a wonderful way :)," she tweeted, later adding, "4 am...Sleepy eyed. Feeding baby..whew this job is no joke!"
Check out photos of other stars who are expecting babies this year:
The reality star is pregnant with her second child, a baby girl.
The "Bachelor" star is expecting her second child with husband Tye Strickland.
Wilde is expecting her first baby with fiance Jason Sudeikis.
Barrymore is expecting her second child with husband Will Kopelman.
Clarkson announced her pregnancy on Twitter Nov. 19, 2013. She's expecting her first child with husband Brandon Blackstock.
Goodwin and her fiance and "Once Upon A Time" co-star Josh Dallas are expecting their first child together.
JWoww, who's expecting her first child with fiance Roger Mathews in July, is set to welcome a little baby girl.
The "SNL" star and his wife Christina Evangelina are set to welcome their first child.
Lil Kim debuted her baby bump during NYFW on Feb. 12.
Aguilera is reportedly expecting her second child, her first with fiance Matthew Rutler.
The former "Office" star is expecting her second child.
The actress is reportedly expecting her first baby with fiance, Romain Dauriac.
Kunis is reportedly expecting her first child with fiance Ashton Kutcher.
Keibler is expecting her first child with new husband Jared Pobre.
Carson Daly and longtime love Siri Pinter are expecting their third child.
Snooki is expecting her second baby with fiance Jionni LaValle.