Do I have cancer?

[SPAM!]

So recently, when i have a bowel movement there's blood in my stool. It doesn't matter if it's loose or not, there's blood. Not a ton, but it's in the toilet and on the toilet paper. And it's coming from the inside, so i didn't cut myself. I remember this happening after I was constipated, and it's been doing this since. I'm a little worried, and for you girls it's like when you go to the bathroom on your period, but maybe a little less.
What could this be and what should i do? do you think I've cut myself on the inside? I'd really like some help.

Thanks. ;]

Also, there's no pain when I go. It's just like normal.
it's bright, like period blood.

There's not a ton, and I dont think it's every time i go to the bathroom. i went yesterday and didn't see any...

I'm a 14 year old female haha

Someone said polyps or something, do i have that?

And at first I could feel tearing when I went and pain, but now i don't feel anything anymore.