My son is now 13 weeks old. After two months of pumping, breastfeeding, and formula, I finally got him breast feeding exclusively. For a month it was great. Now starting a few days ago, he seems to be on a hunger strike. feeding more sporadically, he will go to my nipple and then pop off. I have lots of milk, so supply is not a problem. He has not gained any weight in the last five days and I am getting concerned. I have not started menustrating so don't think my milk has changed flavor....any one's else baby go on hunger strikes around 3 months?