I'd unprotected sex two days after my period ends. My cycle is normally about 35 days but I do not know when I nd ovulate so I took Postinor-2. The incident happened on the second last day of our vacation. By the time I took the first pill, almost 80 hours had elapsed. I bled 2 days after taking the pills for about for days. When should I expect the next period? Does the pill reset my cycle?

With a 35-day cycle, 4-day period, is it true that it's unlikely to get pregnant having sex on the sixth day?