Hi, Are your menstrual cycles regular? If you have regular cycles of 26-30days, then the first week and the last 10 days of your menstrual cycle are safe. If you have had unprotected sex during this period it does not result in pregnancy. So there is no need to take emergency contraception. Please note that the fluid released before ejaculation also contains sperms and can cause pregnancy. So even though your boyfriend did not ejaculate in you there is a possibility of pregnancy if you have had sex on days other than safe period. Therefore you need to take emergency contraception. Loestrin24Fe cannot be used as emergency contraception. Discuss with your family physician and take emergency contraception. There are specific emergency contraceptive pills available like Plan B, I Pill, next choice etc. If these are not available in your country, your doctor will advise based on the contraceptive pills available. It is important to take the pills at the earliest after unprotected sex . The earlier the pill is taken, more effective they are ( 95% effective if taken within 24 hours). After taking the emergency contraception, if your period is delayed by more than a week you must get a pregnancy test done. It is good that you have realized it is dumb not to use contraception. Discuss with your doctor and start regular effective contraception like hormonal contraception or get an intrauterine devise inserted. I also advise you to use in addition barrier contraception like condom to protect yourself from sexually transmitted diseases. I hope I have answered to your satisfaction.