Cole DeBoer and Chelsea Houska may be busy planning for baby, but that didn't stop the Teen Mom 2 star from sharing a message for his fiance with fans on Instagram last week. As they prepare for their upcoming wedding and first child, the second for Houska, DeBoer took to Instagram, where he gushed over his soon-to-be wife.

"Happy Birthday to my beautiful sweetheart!" DeBoer wrote in his message, which also included a photo of Houska standing outside. "I am truly blessed and lucky to be a part of her and I wish her the world on her birthday. Love you."

Cole DeBoer met his reality star fiance in 2014

Following a number of years of back and forth between Houska and her former boyfriend, Adam Lind, the father of her oldest child, Aubree, who turned 7 this week, Houska embarked on a new romance with Cole DeBoer and DeBoer quickly became a hit with Teen Mom 2 fans -- and Houska's family.

For years, Houska struggled with her relationship with Lind, who was known for his poor treatment of Houska, so once her family saw how respectful DeBoer was, they didn't hesitate to welcome him into their family. 

Will Chelsea Houska and Cole Deboer's wedding be seen on 'Teen Mom 2'?

Cole DeBoer proposed to Houska in November of last year and during Teen Mom 2 season seven, fans got to see some of their special moments on the show. However, when it comes to their impending wedding, which is expected to take place in the coming weeks, fans won't be seeing any footage of their big day. Instead, photos of the ceremony will likely be shared after the fact. Since joining the show, DeBoer has made it clear that he isn't a huge fan of sharing every detail of his life with the world. In fact, he has yet to appear at a reunion taping and continues to keep a number of aspects of his life to himself as the series continues.

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Chelsea Houska and Cole DeBoer are currently in production on the second half of the 7th season of Teen Mom 2, which is expected to begin airing on MTV sometime at the end of this year or early next year.