3days before my period due i had sex, took postinor2 within 15 hours, one day before my period due i had spotting now very light bleedin am i pregnant?

See details: Emergency contraception (EC) contains hormones therefore they can interfere with your normal cycle. It is unlikely that you would have become pregnant having sex 3 days before your menses. If you had unprotected sex earlier in your cycle, you might be pregnant. If so, you should check a pregnancy test. If it is negative, the EC is probably delaying your menses.