Do i have colon cancer?

Ok, this is a serious question. I was just reading an article that talks about urinating and defecating blood. Im only 15 but every few weeks or couple months i would get like traces of blood in my crap (never in my pee though) and when i would wipe i would also get little traces of blood too. In the article it said something about stools of blood or blood when wiping could be colon cancer, i mean it doesnt happen often but is this really colon cancer or was it just so much crap that it tore my anus on the way out??