My baby is 5 months old and still she is not started rolling over is it normal?? I'm scared of this

A. Hello good morning !! Babies roll over by 3-5 months ,check if the baby tries to hold the neck while giving tummy time . Consult the Paediatrician . Give regular tummy time for 10-15 minutes it helps in roll over,holding neck , crawling ,strengthening abs.