every month date 24 is my ministration date.I'm doing sex in my husband...when my mins after 5days.and 9 days.5days and I'm eating regular pill.bt satart pil when do sex ...this days to last sex after 3dsys....around 8days regular.and last 24sep.is my ministration date...this day im doing sex... after 2days im eat imergency pill.when I'm test my urine test result negative.my mins date over 4days.now what I'm doing....