my baby is 25 days old,when he was born his weight was 3.2 kg ,and today his weight is 3.5 kg ,is it okk,i m breast feeding mother?

A. it is okay ideally weight gain should be around 500-800 g per month after birth baby should be double the birth weight at completing 4-6 months and three times the birth weight at completing one year it is exclusively breast feed recommended for six months