My daughter is 3month17days old. She's trying to roll over and couldn't do it completely. Whenever she tries at last ends up with crying. How long it will take for her to do it properly? My concern is "She cries while trying".

A. A child reaches a milestone between the age of three months to 9 months so if your child is unable to reach it right now there is no problem at least your child and the child may be crying due to getting hurt or something not necessarily not because of turning over because they don’t have sense of understanding of these things