Kailyn Lowry Pregnant [VIDEO]: 'Teen Mom 2' Star Having Second Baby After Isaac, First With Husband Javi Marroquin

"Teen Mom 2" star Kailyn Lowry reportedly pregnant with her second child, but it is also her first pregnancy with her new husband Javi Marroquin. 21-year-old Lowry already has her 3 year old son, Isaac, and her life has been televised ever since she was pregnant in high school with him (by ex-boyfriend Jo Rivera) on "16 and Pregnant" and now "Teen Mom 2."

Kailyn and Javi got married in September before 20-year-old Marroquin left for the Air Force. A source close with the couple has said that they were not planning on adding to their family so soon but were also not preventing the possibility of pregnancy either.

"They're overjoyed! When Kailyn told Javi, he cried," the insider tells In Touch magazine. Javi has just recently stepped up as stepfather to Isaac, so the pregnancy makes him and Kailyn pretty anxious as well. "They're nervous about the transition to two children, but are so excited!"

In the latest episode of "Teen Mom 2," it looked like Javi and Kailyn were calling it quits. The episode was showing how the two were struggling to merge their lives together, specifically their dogs. With so many pets, arguments erupt and Kailyn even hit and pushed her then-boyfriend. Clearly they have worked through the hard times, vowing to work on their relationship and eventually getting married. It looks like this pregnancy will also bring them together and give them more to share. Or maybe it will just be more drama? After all, that is what the show is all about!

Here is the clip of the latest "Teen Mom 2" episode in which you can see the couple fighting about their pets. Also, baby Isaac looks adorable!