okay so i had sex with my boyfriend a few days before my period was due and the day of the sex i was already having all the symptoms prior to have my period ie: sore breasts. my period was a couple of days late and it wasn't spotting or light and there wasn't any brown or pink discharge before it and the blood is red red so i'm just making sure that it is my period and not implantation bleeding. The only reason why i think i might be pregnant is because my breast usually swell prior to my period and got back to their normal size after my period starts but they haven't, but they're not sore or tender, just big. can anyone help me please and tell me if what i'm having is my regular period or implantation bleeding??