Baby rolling over

My son is only a month old and can lift his head for an ok amount of time. Just like any other baby at a month but he can already fully roll over from his back to his stomach on his own. I don't know how to get him to stop or how to fix it. Because he doesn't have enough head and beck control for stomach sleeping to be safe yet even sometimes when I let him sleep on his stomach when he's laying on me he sometimes has trouble trying to figure out how to turn his head so he's not face down. How is he able to turn so early. If anyone else has dealt with this and has so advice it would be greatly appreciated!