I had unprotected sex last Friday. I took one pill of Postinor during evening and another one before I sleep. But after 5 days of having Postinor, I still haven't gotten my period. I am so scared and nervous. Its not yet 2 weeks so I couldn't have my pregnancy test. Does having Postinor before I sleep making it ineffective? Or am I just being paranoid? I should be getting my period by now :(