My 5 month old is always keeping his right arm horizontally when laid on back. And he prefer more his left arm. Is this ok?

A. Yes see it seems fine but if you see that the behaviour is order the posture of the child is your child is having any kind of a discomfort with that then it is I think that you can check with your doctor secondly kids prefer using more of their left hand in the beginning and that’s very natural for them