Please help. it hurts so much. why is my body doingbthis tome!!!!!!?

Ok my period wont come for about 2 more weeks or so. N for the past 3 days my nipples have been hurting lime crazy. The slightest whisper of breath brings pure agony to me. Yes I have sex n no he has never *** n me yes I know its a bad excuse and not good enough. Any ways is it normal for my nipples to b hurting his bad 2 weeks or more before my period is suppose to come? Os that too early to b a period symptom? What lee cohldbit b? Please help. Iso why im hurting so badly right now.