This is my second baby. She will be 3 months in a week. For the past week, she has been rolling from back to stomach every time we lay her flat on her back. Everything I’ve read has said babies won’t do this until 4-6 months. I think my son didn’t roll until 4 months. She was rolling over from tummy to back at 1 month. And now, her back to tummy rolls are getting so fast! She’s even kicking her feet off the ground like shes trying to crawl. 😳😳 (and no worries, she’s already in a sleep sack with her arms out.)