Chelsea Houska and Cole DeBoer watch the fights during the UFC Fight Night event on July 13, 2016 at Denny Sanford Premier Center in Sioux Falls, South Dakota. Credit: Jeff Bottari/Zuffa LLC/Zuffa LLC via Getty Images

Break out the blue balloons! Chelsea Houska and her new husband, Cole DeBoer, revealed the sex of their baby-to-be via Instagram on Sunday, November 6.

"It's aaaaaaa..... BOY! Can't wait to add a little man to our crazy crew!" the Teen Mom 2 star, 25, captioned an adorable photo of herself, DeBoer and her 7-year-old daughter, Aubree (who she shares with ex-boyfriend Adam Lind).

In the picture, Houska and DeBoer hold a mini clothesline with baby boys' clothing attached to it as Aubree clings onto her pregnant mom's belly.

DeBoer also took to Instagram to announce the news, posting another sweet shot from the newlyweds' gender reveal photo shoot. "Introducing the most amazing man on the planet," he captioned the post on Sunday. "Our little sweetie."

The happy couple's announcement comes weeks after they tied the knot in an intimate country wedding ceremony on October 1.

Houska and the fitness enthusiast started dating in August 2014 and got engaged in November 2015. They announced in July that they were expecting their first child together, due in February 2017.

"We are beyond excited for this journey and can't wait to share it with you all!" the MTV star captioned an Instagram photo at the time. "Big sister Aubree is also extremely excited and it's no secret that she is hoping for a girl haha." (Sorry, Aubree!)

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