DD is 4.5mos old and weighs about 13lbs. I have been back to work part time for about 3 weeks now. I am away from DD for about 11 hours two days a week. She has been refusing most bottles, but this week she finally started to accept them a little. I nurse her in the morning right before I leave, then pump three times at work, and nurse her again as soon as I pick her up from my parents. This week she has been drinking about three, two ounce bottles while I am at work. The problem is that I am pumping about 20oz during that same time . She obviously normally consumes more than 6oz when we are together nursing, but I doubt she is taking 20oz. We have been battling OS/OALD all along, and I thought we were doing better through block feedings. She acts comfortable while nursing, has stopped spitting up for the most part, and no longer has green poops. I am afraid though, that by pumping this much, I may eventually worsen the problem again. I am considering dropping one pumping session, or simply limiting the amount I pump at each session so I am collecting only 1 to 1.5oz/per hour while I am at work. Has anyone else had this problem and how did you handle it ? Also, when I nursed DS I had multiple problems with clogged ducts. I am constantly paranoid I will have problems with these again if I limit pumping.