Hello mommies, saye nak tanye. Normal ke baby 5months masih tak boleh rolling over?

Baby saye dia malas nak pusingkan badan dia walaupun saye encourage dia. Bila sy terbalikkkan badan dia, dia akan tolak balik badan untuk baring. Kalau meniarap pun mesti sekejap je. Have anyone of you have this kind of experience? Please share some of your thoughts to me yg takde experience ni ?