Well i had a little boy on wednesday and i suppose my milk came in today or yesturday and things were getting alittle swore this morning, DS was being fussy and wouldnt latch on, so i pulled out my handy dandy Isis manual and got 4 oz from both sides. seemed like alot for only having a 3 day old. anyway i pumped again tonight after he fed and fell asleep and got another 4oz, could've got more but the bottle was only 4 oz i was using. i've become obsessed with pumping lol. hoping i'll get a good storage built up.