On the 11th of June was my first fertile day and I had unprotected sex which was three days before I ovulated and then had sex again on the 16, days later I had cramps, really tender breast, headache,etc.my period is due on the 28th of June and am now having tingling in breast sore nipples, tender to touch and heavy, feel nauseous like am going to vomit but still haven't, tired as always wants to sleep all day and also my breast feels like when you have baby and it's time for the milk to come down that full and tingling feelings could it be that my period IS coming which it supposed to like said the 28 or could it be early pregnant