My LO will be 4 months this Friday. He can roll from back to right and left but now completely from back to tummy.

Just today we put him on his tummy and he rolled back on his back for the first time. 😀 He can finally lift his head up a little but not so much.

Should I be worried that he is not rolling all the way? I am surrounded with friends that literally gave birth days before and after I did and their babies has been rolling a lot already lately.

It makes me feel like my baby is behind. Any thought???