Is this some kind of OCD?

Im 14 years old. I dont think I have OCD, but im not sure. If someone comes in my bedroom, i cant let them sit on my bed, because im afraid theyll mess it up, even though it already messed up. I start getting a weird feeling when someone sits on my bed. I dont like people touching my things, if they do i get really upset. I also feel really strange when someone comes in my room. Also, if im playing a board game or something, the pieces HAVE to be centered, or ill go nuts. And when im sitting on the couch, i dont like anyone sitting on the crack between each cushion, but i feel ok if I do. And at the computer, its bothers me if the speakers arent straight, if you know what i mean.