'Teen Mom 2' star Kailyn Lowry pregnant again

teen-mom-kailyn-lowry-pregnant.jpgKailyn Lowry, 21, was cast on MTV's "Teen Mom 2" in 2011, when she and then-boyfriend Jo Rivera had 1-year-old baby Isaac. Their relationship did not survive the struggles of raising a baby in your teens, but she has gone on to find happiness with Javi Marroquin, 20, whom she married in September, before he left for Air Force training.

Now Kailyn and Javi have announced they are expecting their first child together. Javi's sister Lidia tells In Touch, "They're overjoyed! When Kailyn told Javi, he cried."

A friend of the couple adds that while they weren't planning the pregnant, they weren't preventing it, either. The friend adds, "They're nervous about the transition to two children, but are so excited."

Kailyn is current working as a dental assistant and, according to her friend, is happy that she's turned her life around. And hey -- at least she's not going to rehab or getting arrested for DUIs.
Photo/Video credit: MTV