Yes, they're perfectly normal to have. There's no right or wrong when it comes to your feelings. And it's perfectly normal to feel a bit confused in the begining, not having quite figured out who you are and all that. Things we all go through, no matter which sexual preference you might have, to be curious about things.
It might be a good idea to talk to someone though, someone that you really trust if you don't feel ready or like you can talk to your parents, maybe a counselor or something at school.
Good luck figuring it out. Don't let anyone keep you from being who you are.