Fitness model Chontel Duncan, who made headlines throughout the last few months of her pregnancy thanks to her itty-bitty figure, has given birth to a baby boy!

The 27-year-old welcomed son Jeremiah Thomas at 8:24 p.m. on March 25. He weighed in at 7 pounds, 13 ounces.

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"Healthy happy baby boy, absolutely nothing medically wrong with bubba, he is extremely alert and very strong shocking the staff here with his arms and neck strength," she captioned a photo of the newborn. "Absolute champion on the boob & feeding very regularly no problem."

The workout enthusiast faced plenty of backlash after posting videos of herself kickboxing just one week ago, but the brunette beauty isn't fazed by people's opinions — especially when it comes to her pregnant body.

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BUMP UPDATE 🍼 39 weeks…. Only 7 days to go 🙈 I have hung up the gloves & sneakers 👊🏽👟🙅🏾 Had my last session Monday night, absolutely LOVED it, had great energy, flexibility & recovery… but my instincts told me that this should be my last @hiit_australia class. It's hard to explain but you just know your body & it's almost like you have this bizarre connection with it where it tells you… Anyways I am proud of my journey, SO proud of Little D & couldn't have wished for a better experience. Now for the waiting game till our D Day! My husband has been incredible, foot rubs, sneaking off to work so I get a sleep in, making sure everything is ready, always turning up to our OB appts with a bucket full of Q's, going over everything we need to do when the day finally arrives & always asking me how I an his son are. Seriously couldn't have done it without him ☺️ My final challenge is accepting that I have to take time off from work, I can't run the classes, can't train in them, can't control the office & oversee that everything is running smoothly… I have other priorities now & until Little D arrives I cannot structure or plan out a new routine until then. I have no idea how I will make it work, but I just know it will. I love my job, I love the atmosphere, I love the people, I love being productive, busy & achieving. So now it's time to step out for a second & challenge myself to master running a business whilst being the best mum a possibly can for my little man. Is crazy to think that soon I won't have my bump…🙁 Little D I cannot wait to meet you 🤗 "First glimpse of him will be on my snap chat chontelduncan"

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"If all goes well, I plan to fall pregnant again this year," she's admitted to People magazine.

Congrats to the new mom!