I have been ttc for 7 months now. I use OPK tests and always cramp during my positive day and also the following 3 days. When my cramps stop, my breasts are really sore for about a week and a half until my period comes. When do your breasts start to get sore? I had always hear its a sign of pregnancy, but it happens every month the day after my cramping ends and lasts for over a week! Could this be a sign that my ovulation is complete??