Not only has this been an incrediably long week - now this happens: my LO is just over 4 months old - we had a somewhat rocky start to BF, but with a lot of patience and practice, we have gotten along beautifully the past 2 1/2 months. I had developed quite an oversupply and now I have taken a MAJOR hit. Last week I was pumping close to 30 ozs (24 - 30 ozs spread out over 4 pumping sessions) per day, along with BF 2-4 times per day before and after work. Monday was a pretty normal day as well. Since Tuesday, I have progressively pumped less and less milk. Tuesday was approx. 22 ozs, Wednesday was 20 ozs and today was 17oz, still have one session to go after I post this. I discovered today that my Medela PISA seemed to be losing suction after the first let-down (felt like it wasn't working quite right, so I took it apart and cleaned it really well and put it back together - no change). I called Medela this afternoon and a new pump is on the way (hopefully by Wednesday next week - their customer service is phenominal) and I am borrowing a pump from a friend until then. My biggest concern is that first of all, my breasts are not as full as they were ( I know that my body regulates the supply ) especially the left one. I fed little dude at 6 this morning, got to work and pumped at about 9 - I got a decent amount of milk then. Pumped again at 12 - only pumped about 4 1/2 ounces (not even 2 out of the left side) and at 3:30 and only got about 3 total - hardly anything out of the left side. My left breast feels totally deflated, I know that the only way to make more milk is to nurse/pump as much as I can. He was only nursing one side per feeding, but I am thinking that we need to go back to nursing both sides in order to bump my supply. I nursed him as soon as we got home and he sucked on the left side for 20 minutes (fussing and pulling and etc), so I switched him to the right and he finished pretty happy. My big question is - since I am obviously getting more out of the right than the left (you can actually see the lopsidedness through my shirt) - should I always start a nursing session on the left side (until the supply is more abundant) since his suck is stronger at first (to signal that breast to make more) and then finish on the right side? Any advice/thoughts/etc. would be greatly appreciated. I feel like maybe I am reading too much into this - but I am concerned about my supply. My first goal was to just try the BF and see if it worked, then my goal was 6 months, now I would REALLY like to make it to a year. Thank you all in advance!