My LO is 7 1/2 mo and has never rolled belly to back. She can roll the other way but doesn't care to very often. A friend suggested 0-3 for early intervention. I wasn't too concerned until she said that. She sits beautifully a d started at 5 mo. What do you guys think? Even when I help her roll belly to back it's very awkward. She's tall and her limbs just don't seem to know where to go. Most babies do this very young so I am starting to worry.