Sore Nipples More Condition_symptoms Sore Nipples?

Sore Nipples? - sore nipples more condition_symptoms

I had sore nipples since yesterday, and when I touch or press it, it hurts. It hurts most around the tip of the nipple. I do not have my period yet since 16 June and is very irregular. I am not pregnant, because I checked the last time and ran the tape, two days ago. Why do I have sore nipples?