My daughter is 3 and half month old and her birth weight is 3.89 kg and current weight is 4.8 kg is it normal ?

A. No it’s not right your child has only gained 1 kg kilogram by your child should have gained at least 750 g as of now a minimum gain that we want a child to have in a month is a minimum minimum of 500 g this is really less you need to start giving formula milk to increase the weight of your child