What, already?

Alright, so I think this is pretty amazing, Parker rolled over from his stomach to his back yesterday, twice!!! He's only 5 1/2 weeks old! We were doing our normal morning tummy time and he was his fidgety self, then boom, he just rolled right over. I thought it may have just been a fluke so I put him back on his stomach and within a few minutes he rolled back over. I knew the kid was strong and never seems to stop moving, but to roll over already just blows me away.