emergency contraception
"first of all like many of you who don't want to get prego and already took plan b but is freaking out not knowing if it will work or not I assure you that it will if you take it within the 12 hrs. 
I used a condom with my boyfriend but it ripped and I was really scared cause he obviously came inside me , and it never happened to me before so I panicked but I knew I could do something to prevent pregnancy so the next morning I went to the pharmacy and took it right away and well all I had to do was wait to get my period.   I even took pregnancy tests but after two weeks I got my period and all I'm going to say is that it works. So don't freak out."