The Jersey Shore star is around six months pregnant with her second child, a daughter. She and fiancé Jionni LaValle are also parents to son Lorenzo, who turns two in August.
Yesterday, she uploaded a new photo of herself to Instagram, showing her clad in gym gear and posing in what appears to be her son Lorenzo's nursey.
"Baby girl is taking over!" she told fans, adding the hashtag: "Large and in charge."
Snooki - real name Nicole Polizzi - is known for her love of staying fit, and she's been continuing to use the gym throughout her pregnancy, although she has altered her routine.
On 2 June she told fans: "I seriously love and enjoy working out while pregnant. Wouldn't have it any other way. #fitpregnancy #healthy."
She added: "It's definitely okay to workout while you are pregnant, as long as you work with a trainer in doing workouts that are safe for you and your baby!!"
Since Jersey Shore ended, red-headed Snooki has gone on to star in a spinoff MTV series alongside best friend and Jersey Shore co-star Jenni 'Jwoww' Farley, who is also pregnant! It's called Snooki & Jwoww.
She's also proven herself to be quite the businesswoman with a range of books, accessories, slippers, sunglasses and more.
Check out one of Snooki's pregnancy workouts below:
Got an iPad or iPhone? Reveal Mag is specially designed to fit!
Stars who announced pregnancies in 2014:
Copyright: WENN Lexie Appleby/Future Image/Bridow/Instagram