Hi, Welcome to Healthcare magic. I am Dr Ramadevi Wani. I appreciate your concerns. Nordette can be used as emergency contraception. But the dose to be taken is 4 active tablets at the earliest ( within 120 hours) followed by another 4 tablets 12 hours after the first dose. But you have used only 3 tablets. So the dose you have used is not sufficient to protect you against pregnancy. These tablets can be used within 5 days of unprotected sex although they are less effective as more time goes by. Since this is your third day after sexual intercourse you can still use Nordette in the right dose. Among couples trying for pregnancy,not all but only about 25% of them get pregnant in one menstrual cycle. So let us hope that you do not conceive in this cycle. Get a pregnancy test done if you do not get your period in two weeks time. Oral Gluta does not increase the chance of pregnancy. So you can continue to use it. I have an advise for you. If you wish to avoid pregnancy in future use contraception like birth control pills or intrauterine contraceptive devise as they are more effective than emergency contraception in preventing pregnancy. In addition Please use barrier contraceptive methods to protect yourself from sexually transmitted diseases. I hope this is helpful.