my baby is around 14 weeks with birth weight of 2.3 kg and now 4.6 kg.. he is totally on breast feed, is the weight gain ok?? do I need to start to feed with formula milk once a day.. is there any changes in diet for baby or when to change

A. Absolutely not your child has been 2200 g which is an exceptionally great weight that your child is having there is no need of giving formula feeding because your child is gaining much better than an average weight gain that the child should be having