Cammi was laying next to me in bed this morning and all of a sudden she started rolling over on her side and within a minute or so she had rolled all the way on to her stomach! She tried it again a little later but got turned on her side and started getting frustrated. She's very good at holding her head up when im holding her against my chest, but during tummy time she has tummy time, she can't figure out how to lift her head up while laying flat on her tummy. I looked it up and read that babies 2-3 months old usually will roll front to back first because it's easiest and babies 5-6 months will start rolling back to front. Was this just a fluke or is she really already strong enough to start rolling back to front at 5 weeks old?