4month old baby gaining only 200/300g in the last month exclusively breast feeding baby...giving formula milk baby refused what to do for gaining weight...birth weight 2.750 Now 5.700 is it normal?

A. hello mom weight is perfectly okk accordingly age moreover if ur baby is active and healthy and playful and having his feed properly on regular intervals and passing urine properly at least eight to ten times a day then there is nothing to worry about at all