Hi, I have been breastfeeding my baby solely for 4 weeks and I am now looking at expressing some milk just so I am able to let my parents look after him for a couple of hours a couple of times a week (just while I rude my horse) please can you tell me how much per feed he should be having at 4 weeks and where I can find how much he requires each month. He will only be having expressed milk on the odd occasion but I want to make sure he has enough. Thanks x