Hi......this may get a little disgusting but I definitely need some advice. I'll make this short and simple. For a week I've been having dark brown spotting. I noticed it really only when urinating at first. Now it's a little more and thicker. And come along with pelvic pain. I haven't had a menstrual since the 19th of July. I'm on a form of birth control which is placed in the arm,called a Nexplanon. I tried to go in to see my Gyn however she has no appts available until the 10th of October. Should I go to the hospital?! What could this be?!