hi i am feeding my baby 70% mother milk and 30% formula milk ..he is 40 days old now.....and he can drink upto 120 ml formula milk at a time please tell me that how much formula milk a 40 days old baby can drink? and could you please tell me if i can give him mother feed and formula feed together...like sometimes he is not satisfied with mother feed and he cries alot then I give him formula milk without any gap... please tell me if its okay or not? thanks in advance