Hi My baby is 5month 15 days old and still not has started rolling over . is it normal or not? Another she has started sitting with support but i want to know till when she can sit on her own?

later till seventh month.... let her sit on floor and she will fall too n cry but its way she will learn to sit... let her on floor on her stomach and give her some toys but put them a bit far that she will try to catch them... i did it with my son and soon he started crawling n sitting on own too in age of seven months....