I've only been back to work a couple of days, so I'm trying to find a good balance of how often to pump. I have the Medela double electric pump, I decided on 3 times a day since LO eats on demand or about every 2 hours. I had no idea how many ounces he was getting per session, but based on what I pumped in my 3 sessions at work it's 10-12 ounces. I feed him around 6:30a if he is awake/ takes it then pump around 9:30a, 12p, 2:30p and have him again to feed around 4:30p. Can I just pump 2 times a day at work, since I will be fuller, and get the same amount, or will my supply drop? How can I get the most out of my pumping sessions? I usually pump for 15 minutes and notice 2 letdowns... I'd given our sitter some frozen stash the first day ( like 20+ ounces) and instructed her to give him 1.5-2 ounces at a time so we could figure out what he actually eats. She told me she warmed up a full 4 ounce bottle for a feeding though and he took it all so now I'm worried he's going to over eat, is that even possible?, and if so then I won't be able to keep up with him at 4 ounces 4 times a day. Baby is 12.5 weeks old, around 12 pounds and 23"