Congratulations are in order for one of Teen Mom's most memorable couples.
Catelynn Lowell and Tyler Baltierra welcomed a beautiful and healthy baby girl New Year's Day. And as it turns out, Teen Mom 2 star Kailyn Lowry was the one to spill the beans.
"Congratulations to my good friends @CatelynnLowell and @TylerBaltierra," she tweeted. "Cannot wait to meet your new bundle of joy." Tyler replied with the message, "Thanks Kail! Can't wait for you to meet her either!"
The engaged couple put their first child, daughter Carly, up for adoption in May 2009 and allowed America to witness the emotional process through MTV's 16 and Pregnant.
More than five years later, both reality stars believe they are absolutely ready to raise a child on their own.