Hi, I am 19 and I am just needing some help trying to figure what is going on. I started my period March 30,2013 and ended it on April 4,2013. I did have intercourse during my ovulation week which was last week and a few days ago my breast starting feeling hard and extremely tender when I push down on them and when I was younger they used to get a little sore a few days before I would start a but I don't start my period again till April 27,2013 and it usually doesn't do that so I don't know why all of a sudden they would...