I had sex during december ..used the pullout method followed with plan b.my period came a week early .2 weeks later my nipples are sore. what is wrong?

Probably due to Plan: B. Potential se’s w emergency contraception: tender breasts; changes in menstrual flow (spotting, bleeding, early or late period or spotting instead of period); loose stools; dizziness; headache; nausea/ vomiting; abdominal discomfort or feeling tired. If you develop chest tightness, difficulty breathing, swelling of lips, mouth, throat – call 911. Notify your gyn if period is 7 or > days late.