Ugg! For about 2 months now my pump supply has been slowly decresing! My LO is 9 months old and has been exclusively breastfed since birth up until last week when i had to start supplementing with formula while I am at work due to me not being able to pump enough BM. I know it isn't a supply issue because LO is getting plenty when she nurses. I will pump for 20 minutes at work with my PISA and get only 2 oz AND not feel empty! I used to be able to pump6-8 oz in that time. I have a new pump, because I broke part of mine and they sent me a new one, so I don't think there is a problem with the pump. I dont know what to do and I dont want to have to give her formula while I am at work! Oh.. and I also have only 2 let downs instead of 3 and it takes about 4 minutes or so for my first let down. Then when I do let down, it is not as active as before. Any suggestions would be fabulous.