'Teen Mom 2's Chelsea Houska Shows off Her Growing Baby Bump

12/13/2016 08:02 pm EST

Teen Mom 2 star Chelsea Houska can't believe how big her baby bump is getting!

The reality star showed off her pregnant belly in a skintight black dress on Instagram on Sunday, Dec. 11, Us Weekly reports. Houska, 25, shared a photo of herself posing with her friend Chelsey Grace with the caption, "Ummmm how hot is@cgrace13 ?! 😍🔥 Annnnnd how can this belly possibly get bigger 😬."

Houska is expecting a baby boy with husband Cole DeBoer in February 2017. This will be the couple's first child together. Houska shares her 7-year-old daughter Aubree with ex Adam Lind.

At the time the 16 & Pregnant alum announced her pregnancy, she shared that her daughter is "extremely excited" to become a big sister.

Disclosure: PopCulture. is owned by Paramount. Sign up for Paramount+ by clicking here.