Missed 2 bc pills, took them, been bleeding for 7 days and coming up on the wk that I should have my period. Is it dangerous to have period for 2 week?

Yes and No. You are having withdrawal bleeding because of your missed pills. Most likely spotting and not heavy. This is not a real period. However, prolonged menstrual bleeding can cause of number of problems. If you are bleeding more than 8 days (heavy) and/or are 8 pads are tampons a day you should consult your doctor.