Baby turning in sleep

First time this has happened. Baby turned onto her stomach in her sleep. She is 7months old amd knows how to turn and and turn back, but this is the first time she did it in her sleep. She did struggle though. She didnt know how to position her head to the side and kept lifting her head up in her sleep. I turned her back onto her back. Currently she co sleeps, but i may move her into her crib now that she is turning. Im just afraid. Will she get the hang of having her head turned when sleeping on her stomach? Should i keep monitoring her and turning her back when she is struggling or has face down?