I still have doubts about my sexuality and I want a label.

I never envisioned myself really to be gay until I was about 13 and well I was physically attracted to men and always just assumed I was gay then.However although in terms of pornography I would prefer gay porn I still never have found myself crushing on a guy, I have however had crushes on girls and have had a few sexual thoughts about them.I'm now 17, I want to know what I am, I have no problems being gay, I would just like to know.So what do you think I am?