I took morning after pills in december and january?

For rare EMERGENCIES: 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 normal, after 3-5 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 by 3 weeks.