On the 6th I took plan b about 16 hours after the "possible incident" because I wasn't sure if I had sex with my boyfriend or not due to intoxication and I wanted to be safe. He told me nothing happened but I'm not sure if I should trust him because he was pretty intoxicated himself. On Friday night, the 11th, I started what I think might have been my period? It only lasted till Monday and then stopped. Then on Wednesday, yesterday, I had spotting. Is this normal? Is this plan b? Was it my actual period or just the break through of plan b? Should I expect my regular period due around the 25th? Please please please help. I'm getting really stressed :(