It has been over three weeks since K stopped BFing. We were down to just night & morning feedings. For a few days I pumped & did some manual expressions, but not too much. I hadn't done anything in the last week and today by breasts hurt. I think I am going to pump to see if I can help relieve them, but I want my body to learn not to produce milk. How much longer should I express so that I don't end up sick, but that my body learns to stop making milk?