Baby Insists on Belly Sleeping

Despite putting her on her back to sleep consistently, my little lady has decided she only wants to sleep on her belly. She can roll both directions so I know she won’t get “stuck”, but it still makes me nervous as hell! I keep flipping her back over after she falls asleep, but inevitably when I wake up in the morning I find her on her belly again. I have her well baby checkup in a couple weeks, but has anyone else already discussed this issue with their pediatrician?