I intercourse with my boyfriend last Sept.16. I have a regular menstruation.The last month its August 13-16. My menstruation was from Sept.10 to Sept. 13. But why last Sept.18 early in the morning my menstruation returned. It is not just a spot it looked like a starting menstruation you know what i mean then its so dark and smelly.Then until Sept.19 to 20. After we did that secret thing, I felt so tired until the next day. Tell me if Im just stressed over or what!They said it is nothing but a continuation of my menstruation. I want to clear my mind coz Im afraid (not ready for this) Need help!Thanks!;-)