Chelsea Houska is halfway through her pregnancy and beginning to show signs of a major Baby Bump. Weeks after the "Teen Mom 2" star announced that she and her husband, Cole DeBoer, were expecting their third child, the second for DeBoer, Houska took to Instagram where she posted a pregnancy update on her Instagram story. Along with her photo, Houska told fans the image was her "bump update" and noted that she was "almost 20 weeks."

On March 15, Houska officially announced the news [VIDEO] of her her pregnancy with a post to her fans and followers on Instagram, confirming that a baby girl would be joining her and DeBoer's family in "a few short months." Since then, she's shared just a couple of glimpses at her growing baby bump.

Houska is already mom to nine-year-old Aubree Houska, who she shares with ex-boyfriend Adam Lind [VIDEO], and to one-year-old Watson, who she shares with DeBoer.

Chelsea Houska married husband Cole not once, but twice

Chelsea Houska and Cole DeBoer welcomed their first child in January 2017, just months after tying the knot in a small ceremony near their home in South Dakota. Months later, Houska and DeBoer tied the knot in a second ceremony surrounded by several of their closest friends and family members. As fans of the show may recall, Houska initially planned just one big wedding but after learning she was pregnant with son Watson, she chose to throw a small wedding and wait until months later to celebrate with a larger ceremony when she was not pregnant.

Chelsea Houska is completely estranged from Adam Lind

Ever since Adam Lind shockingly quit his role on "Teen Mom 2" and began involving himself in a number of shocking legal issues, including arrests and custody battles, he has remained out of touch with his former girlfriend.

As for their daughter, Aubree, she doesn't seem to see a whole lot of Lind these days and his youngest daughter, Paislee, doesn't seem to see her father much either. As fans can see on Instagram and Twitter, the two children appear to spend the majority of their time with their mothers, Chelsea Houska and Taylor Halbur, as well as their mothers' husbands.

To see more of Chelsea Houska, Cole DeBoer, and their co-stars, including Leah Messer, Corey Simms, Jeremy Calvert, Briana DeJesus, Kailyn Lowry, Jo Rivera, Javi Marroquin, Jenelle Evans, and David Eason, tune in to the new season of "Teen Mom 2," season 8B, which premieres on MTV on Monday, May 7, at 9 p.m.