hello i am taking nordette as an emergency pills for 3 months last year and it was ok i was not able to get pregnant, now my problem is i want to get pregnant since i stop taking nordette last september 2013 and i my partner have unprotected sex, i am worried because is been too long for me not get pregnant,my question is, am i having an over dose because of taking nordette as an emergency pills and now am i infertility?, what should i do to get pregnant.