Congrats are in order for Jenelle Evans and her boyfriend, Nathan Griffith! The "Teen Mom 2" star welcomed her second child, a baby boy named Kaiser, on Monday. She shared the wonderful news on Twitter with an adorable picture, captioned, "And you thought we were at the beach... Sike!!!"

Evans is mother to four-year old Jace, whose father is Andrew Lewis. Griffith also has one child from a previous relationship. Earlier this month, the reality star had a baby shower in anticipation of Kaiser's arrival.

She finalized her divorce from Courtland Rogers earlier this month, who she wed in 2012, and shared the news with her followers.

''Thanks everyone for the positive vibes! I'm very happy and feel so free now! Lol," Evans tweeted.

The former couple was arrested together on heroin charges in North Carolina.

The Daily Mail notes the "Teen Mom 2" star lost custody of Jace due issues with drugs and abusive relationships. Evans has been arrested seven times, including once while pregnant this time around.

She announced her second pregnancy in December.

Another "Teen Mom" star anticipating her second child is Catelynn Lowell, which former co-star Farrah Abraham blasted her for.

"I wish them all the best, but it does make me very sad to still see them make poor choices," the sex tape star said. "If I did want to have a family, I would feel secure in showing my family as much love as possible. I bought my own house, I'm starting my own company, I'm doing other things and really just showing that I'm a stable, reliable, great parent. I take that very seriously every day and it's no joke."

"So I hope that with others, who are getting to be pregnant with their second child, that they have a home, that they have a stable financial situation and that they have a supportive family," she continued.

Lowell, whose baby's father is Tyler Baltierra, fired back on twitter, writing, "Huh bad choices?!? Hahaha I didn't make a so called 'sex tape' but WE make the bad choices? Seriously [Farrah's] comments made my night!" 

Abraham said yesterday that she does not pay attention to twitter comments, and insists her former co-star is "seeking attention."

Are you excited for Evans? Let us know your thoughts in the comments section below.