Why Am I Not Getting Periods After Taking Primolut?

Hello, doctor Actually my period on 2nd July But I want to complete my periods before 5th why because there is my journey to temple on 7th august So I used primolut-n tablets from 22nd to 29 th .…...daily 2times..….although up to till I did not get periods.....wats the reason ....what should I do…...