For the past month, I have been trying to occasionally pump out an extra feeding 2-month-old dd for use for bottles. At first, I was able to pump a pretty good amount, maybe 3-4 oz. Now it's an effort just to get 2! I usually will pump after she is given the bottle and also sometimes in the morning since she's sleeping longer stretches at night. She sucks down a 5 oz bottle with no problem, will need more soon I suspect, but it takes several pumpings just to get one bottle. I use an Evenflo single electric pump. Anyone have any ideas? Is it the pump or is it me?