Hi, I took the plan B pill on 6/30, 24 hours after having sex on 6/29. Also, I ended my week long cycle on 6/28. I know we used a condom, but I am not sure whether it broke or not because I had much to drink that night. A week after taking the plan B pill (7/7), I am having erect and sensitive nipples and breast tenderness, low back soreness, and feeling like I am going to start my period. Should I think that a pregancy is imminent and make an appointment with my Dr for three weeks out, or could the plan B still be causing side effects a week later? Thank you.