Brown discharge and a migraine?

So, I'm on CD 64. I had a MC last month and af is now almost a week late...again. I have had sore boobs and fatigue but today had a little bit of brown discharge and a horrible migraine. I'm not testing until the 1st if af doesn't show. I'm just at a loss. If I'm not prego this is some cruel joke...I know that much. What do you ladies think? Pregnant or just crazy hormones?