Teen Mom 2 star Leah Messer announced earlier this month that she and fiance Jeremy Calvert were expecting a child together.
Now, a source tells OK magazine that Messer suffered a miscarriage:
"She was having bad cramps for the past two weeks, and then she miscarried".
Jeremy later added:
"It's a devastating experience, but all I can do is support Leah and take things day by day.It's hard, but we will get through it".
Leah is the mother of twin girls with ex-husband Corey Simms, who she wed in October 2010 and divorced six months later.