Morgan Rolled Over Tonight at 4mo 2 days old

Morgan rolled over tonight! I put him down for bed and he was whimpering. Then, I noticed that his whimper changed. So, I went upstairs (we are in Colorado at Matt & Mary's house) and had rolled from his stomach to his back! Yes, we let him sleep on his stomach. It's so exciting! I was reading in a book last night that babies typically roll over around the 5 month mark. So, he is a FULL MONTH AHEAD! We have given birth to the world's next genius!