She recently married husband Javi Marroquin and they purchased a pretty nice home for their expanding family.
Speaking of which, Kailyn and Javi just welcomed their first child together (Kailyn has a son from a previous relationship).
The baby, named Lincoln Marshall Marroquin, was born on November 16 and weighs in at a healthy 8 pounds, 6 ounces, Us Weekly is reporting.
"I am exhausted, but we are so excited and surprised by our new baby boy," she told the site.
We're excited for them, too...and we're sure Kailyn's 3-year-old son Isaac will be a great big brother!
To see an adorable photo of Isaac holding his baby bro, click here.