Hello doctor, pls I had sexual intercourse with my boy friend on 07/07/2016 at 8: 30 pm, and I took postinor 2 at 20 minutes after sex, and the dosage prescribe to me by my doctor was 2 pills to be taken at once, pls uptill now an scared it its going to work, because I do not want to get pregnant, I have not seen any signs of it working? Pls what can I do, or do I still need some drugs to take again?