So i took Nordette as ECP (1st dosage -4 pills and 12hrs after another 4 pills for the 2nd dosage) approximately 12-16 hrs after our unprotexted "sex" (just rubbing and slight intercourse and no ejaculation) and 6 days after the 2nd dosage i got my withdrawal bleeding and 3 weeks later my boyfriend and i had protected sex and it was just 5-10 minutes not even near to climax and no ejaculation, we even checked the condom and there were no damage and leaks, but just for precaution, i still took nordette as ecp 2 hrs after and then again i got my withdrawal bleeding 6 days after the second dosage and the 3 weeks after the protected sex we went to the doctor to get a blood pregnancy test and it came out negative. After 3 weeks, i got a home pregnancy test and it came out negative, but i didn't get my period for the whole month, and for this month my expected date of period is on the 13th because that's when i got my last withdrawal bleeding, but i got my period yesterday, and it was a normal flow, lighter than my usual period because i used to have heavy periods and it the blood was dark (dark red-black). Could this be the effect of Nordette as ECP? and is this my monthly period?