Um... I'm confused

So. Up until I was about eleven, I always had crushes on boys and boys only, but I was turned on by girls. Now I am thirteen, and I have just changed a lot. I haven't had any guy crushes, and just don't look at guys in that light anymore. But I seem to be way more into girls romantically. The only thing that has been the same throughout my whole life is that I am sexually attracted to ONLY girls. Can someone help me out please?