hi my child is 4 months old and she didn't turn over yet.. is it normal?

A. Hai good morning !! Generally babies roll over by 3-5 months as baby is 4 months old yet there is time. Give good massage and tummy time . Tummy time - Keep a mat or blanket on floor place baby on tummy side and leave for 10-15 minutes gradually they hold their neck properly turns to see surroundings,tummy time helps in making abs strength, roll over and crawling .