Milestone Rolling over at 2 1/2 months!!!

I forget when babies have their milestones, I have to google it.  I put Preslie in her crib on her back and next thing I look at in the monitor she was on her stomach.  I googled it and they said that it usually happens at 4-6 months.  I couldn't believe Preslie is only 2 1/2 months and rolling over.  Then I got it on video.  Josh said he had a dream that she was a genius ( doesn't even parent think their kids are smart).