Hello! I took postinor 2 before my period on may 13, my period came 13 days after and was havier, arownd a week after menstruation a had some brown spoting for about five days, but my period on june did not came, actually im 9 days late, a took to many pregnancy test they show all negative. Does postinor 2 delay next month period??? Im very anxious im not ready for a baby.