On October 12th I had unprotected sex but I took a Plan B and then about a week later I got a dark brown/red discharge and it went away after a couple days. Then on November 5th I had sex again (I know I’m dumb) and it’s now November 14th and I haven’t gotten my period. It was supposed to come on November 7th. What are the chances I’m pregnant? Or is it the plan b messing up my period