Ok, I already had my period for this month, but for some reason i've been spotting the past two or three days. It's not enough to need a tampon or pad, but it is enough to see on toilet paper. Also, after I urinate I see bits of bloody tissue in the toilet water, and some little clumps of blood. I took two pregnancy tests in october, both were negative. The last time I had sex was october 6th. Ive had a period in october and november, so I know I can't be pregnant. Or can I be? Im confused and scared. This has never happened before.