My baby’s birth weight is 3.1kg. What should be her normal weight at 3months? How do we know if the baby is gaining weight properly?

A. It should be at least 4600 g by completing the time of three months also you should know this that a child is expected to gain a minimum of 500 g in a month it could be more than that but 500 is mandatory and you have to weigh a child weighing machine to know how much your child Need