I got my period on the 6, of this month. I had unprotected sex on the 19 of this month, and took Plan B the following day (April 20). I had no pain, nausea, or any other symptoms. Today is the 26, and when I woke up, I was spotting. It was not heavy at all. In fact, I would not even consider it a 'period'. However, later in the day, the spotting got heavier and looked like a normal period. I'm not sure what is going on? I've never had two periods in one month? Please tell me what's going on. Thanks.