I have recently been ttc and Im on cd 22 in a usual 30 day cycle. I broke out in hives yesterday and I was wondering if it might have something to do with a succesful pregnancy. I havent had any of my normal premenstrual cramps and i havent changed anything in my daily routine that could cause hives. This is my first outbreak of hives and it is primarily on my buttocks, thighs, and arms. Anyone have hives before they got a BFP.