I had unprotected sex while I was drunk on August 3rd, 2017. My period had ended July 29th, 2017. I don't remember having sex at all but my friends had told me I did. The guy had no idea if he came in me so he was freaking out. Around 25 hours later I took plan b. I started to have brown bleeding 6 or 7 days after that lasted as long as my actual period would last, so for about 4 days. It is now September 5th, 2017 and I still haven't gotten my period. I am 9 days late. I have no symptoms of being one month pregnant but I've heard not everyone gets symptoms. I've been having minor cramping for a couple of days, but I'm freaking out that I'm pregnant. Can I be late for changing my diet of eating, stress, and being scared? Or is it most likely possible I am pregnant?