Plan B

Katharine
Okay so I'm not on birth control and a week and a half late. 
My first time was about 2 weeks ago and I'm freaking out at this point. I've read just about everything there is online and I just don't know what to think. Between he personal testimonies and the plan b stuff I'm just lost. I'm about 200lbs and plan b says it doesn't work for about over 175lbs. 
I'm taking a test tomorrow and just told my best friend about it. He is reassuring me that I'm probably fine but I cant help but freak out about it because that's just who I am. 
hElp