There’s another baby on the way for Teen Mom 2 star Chelsea Houska! The MTV star announced via social media and on her website on Tuesday, July 12, that she’s expecting her first child with fiancé Cole DeBoer

“And then there were four…,” she captioned an adorable Instagram photo of her daughter, Aubree, holding a sonogram, along with a link to her website. Houska had her daughter, whose dad is ex-boyfriend Adam Lind, in September 2009. The birth was featured in season 2 of MTV’s 16 and Pregnant in 2010.

“Oh my gosh! I’m so excited to finally be launching my website, and I felt like the perfect first post … would be to announce to everyone that baby DeBoer is expected in February 2017!” the expectant star shared on her site. “We are beyond excited for this journey and can’t wait to share it with you all! Big sister Aubree is also extremely excited, and it’s no secret that she is hoping for a girl haha.”

Houska vowed to keep fans “updated throughout this pregnancy” on her new site.

“We’re really excited and Aubree is pumped to be a big sister,” Houska told MTV News on Tuesday.

DeBoer, who was first introduced to fans during season six and who has been standing in as a father figure for 6-year-old Aubree during Lind’s many absences from his daughter’s life, added: “I’m a proud dad of one already, so adding another to the family is just amazing.”

The couple started dating after meeting at a gas station back in 2014. DeBoer proposed in November 2015.

Their engagement and wedding planning has been documented on season 7 of the hit reality series. 

Sign up now for the Us Weekly newsletter to get breaking celebrity news, hot pics, and more delivered straight to your inbox!