Hello Sir, I Had Taken Regestron Sandoz 5 Mg Tablet

Hello sir, I had taken regestron sandoz 5 mg tablet for 3 days and 3 tablet per day. My period date is 5th but, still my period is not come. I left to take pill from 3rd. And I have some devotional work at home on 11 . so please help me to postpone my period for more 10 days.