Hi there! This is my first post on mothering.com but I saw this and wanted to let you know you weren't alone. I still offer my right boobt, but my 11 month old daughter has "given up" on it. I had a lot of problems with that side from the get go but she just recently stopped nursing on that side. The left has always been the primary source and I've been lopsided pretty much since she was born. If it's really noticable I'll wear a nursing pad on the small side to try to balance it out a little bit (I'm small breasted to begin with though). I'm glad that I am able to meet her needs still and I'm assuming one day they'll be the same size again. lol!