sore nipples

hi my name is marie and my question is it has been a month since i havent had sex with my boyfriend
but my niples are sore and it hurts most of the time at first i tought i was pregnant but is not that wat could it be.
and i been with the pain 2 weeks already do you think i should go see the doctor

[Cleveland Clinic]

Dear marie, Breast pain is a common breast symptom.  The reason for breast pain is not clearly understood, and is not usually associated with breast cancer.  Breast pain is sometimes associated with hormonal variations and is then called cyclical breast pain.  Noncyclical breast pain does not seem to be linked to hormonal variations and is often localized to one area of the breast tissue.  Noncyclical breast pain may or may not be the result of an injury to the breast.   Over the internet without being able to evaluate including physical examination it is difficult to say what this is. You should bring your symptoms to the attention of your doctor who can evaluate and put into perspective for you.