hello sir. I wanted to know whats the normal weight gain per week or in a month for babies. my baby is preterm weighed 1.8 kg at birth. now she is 4.7kg and she is 3 and half month old

A. Dear mum, weight of 4.7 kg is a normal weight for 3 and half months old baby, do not worry. Baby should gain at least 500 grams per month till 6 months and should double the birth weight by 6 months.