I Took Two Morning After Pills After Having Unprotected Sex

I took two morning after pills after having unprotected sex two times last month and I missed my period. I was supposed to go on a trip this month so I started a 10 day course of Norethisterone so that I don't get my period while I was on the trip. During the trip I had to take another plan B and I continued taking the norethisterone. I stopped taking it the day before yesterday and still no sign of period. I know I've messed up big time and I'm really worried. When will I get my period?