An insider tells OK! magazine that Teen Mom 2 star Leah Messer has suffered a miscarriage. "She was having bad cramps for the past two weeks, and then she miscarried," a source says.

Leah Messer's fiance, Jeremy Calvert, said "It's a devastating experience."

Leah posted some updates on her Twitter, hinting that OK! magazine's story is true. On Thursday she said:

• I know everyone has been hearing I’m sad, and depressed lately. My grandma is in the hospital and on life support.

• Please pray for her, it’s been rough!