My fiancé and I had unprotected sex 20 days ago on my high fertility days. I am now 5 days late for my period. My breasts and nipples have been feeling really soft lately and they seem to be growing. I have also been discharging alot more than usual and have been having horrible upper back pain. I have also been feeling really horny lately. My face has been breaking out (pimples) and I even noticed a cold sore inside my inner lip a few days ago .