hello doctor this is regarding my 4month kid girl she is not rolling over...how to help her in rolling

A. hello...some babies start their milestones little later then other babies nothing to worry about...like.Generally most babies learn to sit independently between the ages of 5 and 7 months.... some babies will have started rolling over by 4/5 months and holding head up as this is before sitting which happens...Most babies can sit well for several minutes without support by the time they're 8 months old