I am having supply issues when I pump. I have been breastfeeding pumping pretty much all the time. I did supplement with occasional formula. So all of a sudden if I bf my son at night say last night he got up at 3:30. I tried to pump this morning around 6:30am or so and I only got 2 oz. Before if I would do that I would get at least 4-5 oz. Now I get almost nothing. I only had enough for the sitter since I pumped 2 oz last night. It just seems all of a sudden I am not getting as much. When I BF he gets plenty but it is when I try to pump and give him a bottle. I end up giving formula sometimes just b/c I want to save for the next day and that way the sitter doesn't have to give him formula. I don't want to but I can't get enough BM otherwise for the next day. I don't know why this is happening all of a sudden when before I could get at least 2 good 5 oz bottles since I went back to work when my son turned 2 mos. I work at home. I know my son isn't eating as often but he is eating more about 5 1/2 to 6oz but when I pump I still don't get much. I was told I should pump more and I would get more but I have been pumping every 3-4 hours and no such luck. Anyone have any advice?