I agree with Jeanne about not feeling like you have to fit yourself into a particular definition, but for me, when someone just in passing on this site mentioned the difference between a bedroom or sexual submissive and a service submissive, it was really helpful to me.
Maybe you're not a service submissive, or maybe you're still exploring, but there's certainly nothing wrong with bedroom submission. And in my experience, sometimes the very men who like you to be in charge in the relationship really enjoy being in charge in the bedroom, once you've given them permission.