Jamie Lynn SpearsJamie Lynn Spears and her fella Casey Aldridge have been through a lot in recent times.

They've had a baby for starters - a pretty big thing when you're both still in your teens.

And now a new challenge has come along for the pair.

Casey faces allegations that he cheated on Jamie Lynn while she was still pregnant.

The woman making the claims is Kelli Dawson, 28, who told In Touch magazine that she and Casey, 19, were romantically involved and were sleeping together when Jamie Lynn, now 17, was six months pregnant.

Kelli also claimed that she still sees Casey "at least once a week" but they stopped having sex a few months before Jamie Lynn gave birth.

"It just didn’t feel right," she explained.

... Oh, really?

We sincerely hope that this is a whole barrow of baloney - and our thoughts are winging there way to newbie mum Jamie Lynn.