Worried mama: baby’s starting to sleep on tummy

Stefanie

Y’all he’s flipping over by himself and he’s starting to sleep on his tummy. This worries me so much because sometimes he can’t move one of his arms from under him. Today he was able to fully flip from back to tummy but it took him a little while. Is it okay to leave him on his tummy if he turns in his sleep? Or should I flip him over? I always put him to sleep on his back btw

Right now he’s in his own room in his crib.