I had unprotected sex 5days after my last period he pulled out we were paranoid took plan bill b that was jan1st with in 24hrs jan 8th headache breast tenderness&bleeding until jan 22nd through the time of my period which should have been between the 15th-18th do u think I had my period too?Now feeling tired alot&cramping should I be worried?Is my period late or did I have it already do u think im pregnant?