Congratulations are in order for 16 and Pregnant Season 4 star Kristina Robinson-Head and hubby TJ Head, who welcomed another baby boy, Layton Jax, on February 12. This little man joins older brothers Lukas (born September 26, 2011 from Kristina's previous relationship with John Todd Hight, Jr., who passed away a few months prior) and Tommie Joseph (born January 8, 2013).

Layton's birth comes as a bit of a shock since last we heard Kristina and TJ had separated. According to a July 2013 report from The Ashley, the couple was headed for divorce — in fact, Kristina had started using her maiden name again on Facebook during that time.

Teen Mom Junkies also reported on the couple's marital problems, claiming that Kristina even hooked up with someone else during the split and that she's unsure of the paternity of baby Layton.

But Kristina sets the record straight in a brand new interview, telling the The Ashley that TJ is indeed the father of her newborn son. She also admits that she kept this pregnancy a secret to avoid media attention, saying, "I posted about him when I was ready to share him."

It seems like whatever happened between Kristina and TJ is ancient history, and we couldn't be more thrilled for the young parents. After everything this one-time reality star has been through, she deserves a happy ending.

Are you shocked to learn that Kristina and TJ welcomed another baby last month? Tell us below!

Source: The Ashley