It's the first day of my period and I'm 9days early, I'm not very regular. The past week I've been have bad headaches and body cramps, today I've had regular cramps but my headaches are still hear, I've never really had headaches like this, but I just assumed all that was because of stress. Ive also been fatigued. Whatvreally worries me is that my blood is thick clumpy brown color and that has never happened before, I'm 26 not on birth control and sexually active I don't think I'm pregnant but I read that could be a possibility, or is it just "old blood"?