'Teen Mom's' Chelsea Houska is Pregnant with Baby Number 3!

The Teen Mom family is about to get a little bigger! Teen Mom 2 star Chelsea Houska announced on Thursday that she is expecting a baby girl with husband Cole DeBoer.

Houska posted a photo of the sonogram on Instagram with the caption, "....GUESS WHAT! A sweet baby girl will be joining the DeBoer clan in a few short months! We could not be more excited! 🎀"

Cole shared the same photo with an absolutely adorable caption, "This proud dad is getting a new Bow 🏹 and it’s nailed my heart 🎀"

Chelsea also has a daughter, Aubree Lind, who she shares with ex Adam Lind. Houska and DeBoer, who married in 2016, welcomed their son, 1-year-old Watson Cole in January 2017. Are they not the cutest little family?

Me, right now, looking at these photos:

Houska's Teen Mom costar Kailyn Lowry tweeted her congratulations to the couple, welcoming Chelsea to the "moms of 3 club."

Congratulations, DeBoer family! Can't wait for more themed photos and Insta-worthy family vacations!