I had unprotected sex with my bf and i took 4pills of nordette 4hrs after the deed then another 4 12hrs after the first set. After 7days i had bleeding that seemed like a normal menstruation. I'm still bleeding and it's the 4th day today tho it becomes lighter. I also experienced dizziness, mood swing, mild cramps, headache and lower back ache. We haven't had sex since. Usually my flow comes by the last week of the month. Does this mean that i'm not pregnant? Or am i? Please i'm worried. Please help me