4 month old sleeping on belly

Nichole

So my 4 month old just learned how to roll over a few days ago and now all she wants to do is roll over and sleep on her belly. If I move her back to her back she just rolls over a second later. She’ll turn her head while she’s sleeping but sometimes she’s face planted in the mattress. I’m terrified and can’t sleep well. Any one else’s baby doing the same?