anyone's babies not rolling?

britney
Alright who's July babies aren't rolling yet? My daughter was born at the very end of July- the 27th. She's not rolling back to belly or belly to back. All I see on here are mommas talking  about how they're babies are moving all around and mine is perfectly content to just lay on her mat. I know she'll roll when she's ready and I'm not concerned but someone please tell me were not the only ones.. Her daycare teacher has me stressing about it.