Okay... I had unprotected sex on the 12th of  august and even though he pulled out I took plan b around 18 hours later. My period was supposed come two weeks after that but three days after I took the pill I had a heavy discharge that lasted 6 days with cramps and everything so I though it must've been my period  because I know the pill can mess up your cycle and make your period to come early. So, saying that my whole cycle was supposed to start on the 22nd then my period was supposed to come today September 16th... but nothing. I have all the period symptoms that I regularly have but no blood. I'm freaking out... plus if that wasn't my period then I'm 2 weeks late and I can't be more stressed out. PLEASE HELP I NEED TO KNOW IF THIS IS NORMAL