I started pumping when DS was 3 days old becasue I had a great fear of not producing enough. I now have 35 bags of milk in the freezer and OALD! I have heard that babies of mothers with OALD are prone to prefer the bottle becasue of the slower flow of the nipple. Any suggestions of what type of nipple to use when I go back to work on January 4th? We have tried Avent bottles and he cannot latch on them, milk comes out of the side of his mouth. So far Medela bottles seem the best but he still eats very fast and spits up and chokes a great deal. He does not spit up or choke nearly as much on the breast now that I have started the one sided feedings and doing the breast compression while nursing that I read about here.