Chelsea Houska is preparing to walk down the aisle with fiance Cole DeBoer, and as she gets closer to her wedding date, she's been getting more and more excited online.

In addition to a bevy of recent tweets shared by the Teen Mom 2 star in regard to her wedding, the pregnant Houska recently posted a throwback photo of her and DeBoer's engagement -- which also featured her daughter, Aubree.

"All of the sudden, oh it seemed so strange to me, how we went from somethings missing.. to a family," read a quote shared in the caption of Houska's photo.

Houska also added, "This was the best day ever. So incredibly lucky."

Also on Instagram over the weekend, Houska posted a photo of her baby bump.

Last month, Houska offered an update on her pregnancy on her official website, which is also where she annonced her baby news for the first time.

"I just started the second trimester! Baby is about the size of a lemon!" she wrote to readers. "My belly hasn’t really grown yet, but my boobs are legit – the size of Texas. So that’s fun lol. I’ve been starting to have more energy and trying to eat healthy and get back in the gym, so I’m feelin goooood. We had an appointment with our midwife last week and she said everything is looking great, she even showed us our little nugget! So exciting!"

Tags: Chelsea Houska Cole DeBoer Teen Mom 2 MTV Reality TV