What breast pump do you use? I was really struggling when i first started expressing, i was managing about an ounce from each side! I went and bought a medela swing electric pump, and now i get 4 oz in 20 mins just from one side! It was well worth the money for me! i tend to express twice a day and pop it all in the freezer, then its there if i need it. The problem i have is that i seem to be able to get more from one side than the other, and typically its the side with the sore nipple! I think babies do get more than you express, as they are the experts at getting it out lol! The only other thing i would suggest is trying to express at the same time each day when you're at your fullest. I express 1st thing in the morning and last thing at night, and usually express off one side as she's feeding off the other. It works for me as i have 2 older kiddies, so i'm sitting down to feed her anyway and not using up any more time by expressing aswell if that makes sense xxx