I have never heard of this before. Mother breastfed first baby for 3 1/2 months. She experienced nausea the entire time, and vomited every time she nursed. She used no fertility drugs, it was not better or worse at any time of the day, and she experienced nausea with pumping. (I think it's incredible that she nursed as long as she did.) Now she is pregnant with #2, EDD 10/11, but already experiencing early labor. She became pg while taking Oral Contraceptive Pill. I'm looking for cause and solution, and treatment for relief. What do you think? TIA, Jeanne Fisher Austin, TX