emergency contraception
"If you're worrying about if this drug works or not... RELAX. I was in the exact same boat as you! I was so stressed that it wasn't going to work but this pill is a life saver. With all of the stress I searched every single website I could find and still thought to myself that I was going to be one of the unlucky ones. I also thought that my period would be delayed due to stress and the pill but I was wrong.  I didn't have any symptoms from it and my period came 2 days before it was expected.  Just try to relax and let the pill do its job."