I took the morning after pills 2months ago start having bad pelvic pain. now it been about 31/2 months and i still dont have my period not sure what d?

If 3.5 m, can retest: Taking a morning-after pill (such as Plan B) can alter the timing of the current menstrual cycle and the upcoming cycle. Menstrual bleeding or spotting should be back to usual, after 3 to 5 weeks or so. One should check a urine pregnancy 3 weeks after taking the emergency contraception pill, to make sure there is no pregnancy. Home urine pregnancy tests are very accurate, and sold everywhere.