Hi, me and my boyfriend had unprotected sex on the 9th of december and on the 10th the next day I was advised by my friend to take two pills of postinor2 at once (it is my first time) and a week later I started having abdominal pains in the Lower region and I havnt seen my period. It still hurts, is there anythng I can do to make it stop? And is it also a sign that I'm pregnant?