Teen Mom 2 star Leah Messer and her husband Jeremy Calvert welcomed their first child together, a baby girl, on Monday.

Messer, who is also mother to twins Aleeah and Ali, 3, Tweeted on Sunday that she was expecting her new addition’s arrival soon. ”Yes, the time is near,” she wrote. “Can’t wait to meet you little Miss Calvert!”

‘Teen Mom’ Star Leah Messer Pregnant with Third Child

The reality star married Calvert in June 2012, and told reporters in November she was surprised by her pregnancy. ”There is a reason God gave the baby to us now,” she said. “I’m not going to say it wasn’t planned, because we intended to try — eventually. It just happened a little sooner than we expected. Our parents are thrilled. It’ll be Jeremy’s parents’ first grandchild, so they’re really excited.”

Congratulations!