My title says it all, however, I can't pump. I used to pump a little in the beginning, but haven't in a few months and it just won't work now. My pump is an AmedaPurely yours. I also got a medela manual and haven't had luck with that, even looking at my baby or photos while I try. The first time I got half an ounce, and since then just drops when I pump after I feed. I don't want to pump away a feeding, I don't give her a bottle, I just want to up my production a little and have a stash. Does pumping and not getting anything still stimulate milk production, or do u need to be emptying or at least getting a half ounce or so to be effective. if I continue not to be able to get anything, would a hospital grade pump be able to drag it out?