Experienced bleeding 6 days after taking postinor2 and it coincided with my period due date. Also took it 3 weeks later and experienced bleeding 9 days later and it started 2 days before my period. Both bleeds seemed normal. I haven't seen my period this month and I'm 3 days past the due date. Should I be afraid of the drugs affecting my womb? Were those bleeds actu ally my period or breakthrough bleeds? Thanks for your help.