Wait 2 weeks and take another pregnancy test, but I would recommend calling your doctor if you are so scared, at least get a professional opinion--that's what they are there for! Perhaps you would like to look into using condoms so that you do not have to take the emergency contraceptive and then worry you are pregnant though. Good luck.
but im too scared 2 consult a doc.i live in a country where gtng physical wid a boy be4 marriage is nt considered gud
even d doctors wnt lyk it