I am mother of 1.5 month baby and my baby cries a lot when he comes to me and soothes and calms down when he is with my mother or sister

A. That usually does not happen because the child is most comfortable with the mother because the mother keeps a child most of the times out of 24 hours I think on 24 hours the child only with the mother hardly anybody else takes the child and also the mother is feeding so the child recognise the mother with its smell so if you’re facing this issue then you may just talk to your doctor about it once