Emotionally attracted to men and sexually attracted to women??

I consider myself straight, because I’m attracted to men. I’ve never been a relationship or done anything sexual but I’ve liked guys before and never girls. However, when I do like a guy and I think about doing sexual things with them, I get weirded out. But when I think about doing sexual things with a woman, it turns me on. But its not any woman in particular, but just a really pretty girl I guess. Idk what this means because I feel like when I do get a boyfriend it will be weird so idk. I’m 16 btw. What does this mean?