Surprise! Chelsea Houska just revealed on her Instagram that she's pregnant with a baby girl! The good news comes one year after the Teen Mom 2 star and hubby Cole DeBoer welcomed their son, Watson.

"GUESS WHAT! A sweet baby girl will be joining the DeBoer clan in a few short months! We could not be more excited! ?," Chelsea wrote in a caption alongside an adorable sonogram picture.

The reality star — who's also a proud mommy to eight-year-old daughter Aubree from a previous relationship with ex-boyfriend Adam Lind — has been very vocal about her desire to expand her beautiful family. On an episode of Teen Mom 2 which aired last August, the beauty sparked a conversation with Cole about the potential of having another baby.

"Do you think by this time next year that we’ll be having another one?” she asked, to which her husband replied, "We’re gonna have more when mom’s ready to have more.”

And it looks like they're finally ready for their next bundle of joy. Congrats to the happy couple and growing family!

Love Teen Mom? Be sure to join our Teen Mom Facebook group to chat about all the latest updates and juicy gossip!

For access to all our exclusive celebrity videos and interviews – Subscribe on YouTube!