Nipples been sore since ovulation. my period is do in 7 days. i have had sex on the fertile days and as well as ovulation day. what could be the cause of my nipples still being sore?

Normal variation: Normally, when the hormones change in preparation for Menses, various symptoms can arise: Nipple/Breast soreness, Headache, Mood swings, vaginal discharge, and Acne breakouts. It is important to note, that many of these symptoms are also present when pregnant. If your menses is absent or abnormally light next week you will want to do an at home pregnancy test available at any Pharmacy.