I just pumped for 10 mins. With a hospital grade pump after feeding my LO and got NO (not one drop) milk. I keep being told that you are never empty, but that sure feels like empty to me. Not the kinda of confidence booster I needed. Any idea why there was no milk? She had feed for 20 mins. right before I pumped, but I would have thought I would have gotten something or had another letdown. I pumped for 14 mths with DS and I could pump for 45mins straight and there would never be a 10 minute stretch without something.