My baby is 4 months old, He hasn’t rolled over yet, when do babies start to roll over on their own??

A. sometimes rolling over can come after 4-5 months so no need to worry for that and it is not nezcessary that it should come early. many times the weight of the child is more and that also delays the rolling. if if the growth and weight of the child is within normal limits then no need to worry about it. just carry out regular mzassage and proper diet and the child will be fine in next few months