I have a question. I've seen similar questions except I did NOT take the Next Choice within the 72 hours. I was exactly 14 days after my period (28 day cyle). We had sex unprotected. This was Sunday 9/23 @ 1am and 9/23@ 4 am. I read online that you have up to 120 hours for Plan B to be effective. I took it on Wednesday 9/26 @ 1PM (82 hours later). No side effects until today (10/2, 6 days after the pill). Very light spotting. "Normal" period would have started on the 6th (4 days from now) . Is this a sure sign that the pill worked? How do I know if this is "spotting" or a lighter, earlier period.