My son is 9 1/2 months old now he is a premie, birth weight - 2 kg I have few doubts regarding his growth He gained 1kg of weight from 7 to 9 months before that he was gaining 1 kg or 1 1/2 kgs each months, I fed him only with breastmilk till he's 6 months and I've started to add nestum (rice) from 7th month...Is this normal... why isn't he gaining weight like before...? his height is 72 cm and his weight is 9.20 kg now in which month baby will sit and crawl?