My daughter only likes to have milk from my right breast and not from the left one. How do I change this habit of hers? Could there be a reason for it?

I always joke that one breast produces vanilla milk and the other side produces chocolate milk. My daughter doesn't have a favourite breast though. You can try offering your left breast to your baby when she is still sleepy or offering it when she's very hungry. If all else fails, do remember to pump or hand express out the milk from your left breast. :) http://www.babycenter.com/0_breast-preference-nursing-on-one-breast-only_8492.bc