I took an emergency contraceptive pill on the last day of my last period, five days after which, I experienced what I am guessing is withdrawal bleeding which lasted for 2 days. I'm running 15 days past my next due date and I also have taken a self pregnancy urine test thrice during these 15 days i.e. after two days, seven days, and 12 days of my missed period respectively which all came negative. I'm really worried about what could be the possible reason behind this delay? Could I still be
pregnant? Or is it because of the pill?