Hello, so I had unproctected sex with my boyfriend the day after I had gotten off my period. I took Plan B 6 days after that. I been taking birth control for the past 3 months and haven't forgotten to take anything and been taking them correctly. My boyfriend doesn't know if he came in me, I doubt he did. I been feelings sort of weird. I had a small cramp in my left side but that's it. Other than that I'm fine. Could it be the side effects of the Plan B or could it be that I'm pregnant?