Okay so I had unprotected sex the last day of my period with my boyfriend and took the generic Plan B pill two days later. One week later I got my period. It had only been one week from my last period. After 5 days I got off my period and a week and a half passed. After a week and a half I got my period AGAIN. It went on for seven days. On the seventh day I was having light days but a day later I started again just like usual. I'm worried because it has already been a lot of bleeding. What should I do? Is this normal at all?