I took Next Choice emergency contraceptive exactly 2 weeks ago after an "accident" happened. I took it within the hour of incident. 3-4 days later, I had a period. Heavier than normal. Definitely not light. That lasted almost a whole week. Still having some discharge from it (brown color). And also, nipples have started hurting a little the past few days. No other breast pain. Just nipples. I'm curious if this is happening because I took the Next Choice or if there is a chance I might be pregnant. Like I said, the period was immediately after those pills. After that happens, is it even likely that a pregnancy could occur?