I have a 4month old baby, she is not gaining her weight, she was 4 kg in last month She is born with 2.6kg what should be the weight for 4 month baby

A. hi weight gain is good enough so nothing to worry about it. continue with breastfeeding. feed your child on each breast at least 20 minutes so he or she can get full fat hindmilk well which help to increase your child weight give Gentle massage with Babyhug massage oil everyday