Hi, I am a 25 year old healthy female. I have had tenderness/soreness in my nipples (not the whole breast) for about a week now. I am suppose to start my period in 2 days. I never have had breast tenderness or nipple tenderness before or during my cyle. Only pms symptom I usually have is cramps. I am on birthcontrol and have always had regular period. I have not changes diet, clothes, soaps, or excerise. Could this be a sign of pregnancy? Or just a new symptom of pms? Could use so advice. Thanks