Breast tenderness for about a month

[scared girl patty]

I am 23 years old, healthy. I've always had regular cycles. About 2 months ago I took the day after pill, and my period came early (2 weeks early). About a week later, I started having breast tenderness (which happens every time before I get my period). The thing is, my period hasn't come (Im like 3 weeks late) and my breast are still hurting. I'm sure Im not pregnant since I already had 3 EPT done and are all negative. Do you think the day after pill messed up my cycle?

[Cleveland Clinic]

Dear scared girl patty, 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.  

Menstrual bleeding patterns may be altered with use of the

[scared girl patty]

hey is me again, just to make it more clear. I had the morning after pill on May 20 (the condom broke and I dont take birth control), and got my period on may 28 (which was early cuz my period wasnt supoused to come until June 10). Around June 10 i started having breast tendernes and I thought my period was gonna come again. It hasnt come!!! and i still have breast tenderness!!! Could the pill be afecting my cycle still???