my baby is 4 months 20 days old age now.. at the time of birth her weight was 2 kg I want to know what should be the normal weight and height she should have till now.. nd she is totally on formula milk..

A. hello is the baby is gaining a minimum of 600 grams to 800 grams per month then it is a good weight gain which means that baby is also getting sufficient breast milk and absolutely nothing to worry and you can expect a baby weight the around 4.5 kg to 5kg at this age