.Since my child is a premature baby I can only breastfeed him for 15 mins post which I give him expressed breast milk through katori chamach. Inhave the following questions: How much milk should I be able to express in between feedings Also since he is one month old I feel he asks for feed after every one and a half hour is it normal? How do I figure out if I am producing enough milk. How much expressed milk would my baby need per feeding after 15 mins of breastfeed.