My son was like that. My peadiatrician told me not to worry so much as pretty soon he will learn to roll back over by himself but always put baby to sleep on their back. It didn't take long for him to work it out but I still worried about SIDS and rolled him back over for a little bit.
I tried that when she was younger and she hates her arms being in tight. She likes them stretched out. She is her daddy all over lol
Maybe swaddle her? Trap her little wiggly arms in a blanket so she can't roll...