Yes, but I don't see how that's relevant. Atheist is a binary descriptive label, not just an identity you can choose to subscribe to or not. You can't decide what you believe. So, if you don't believe in god, you're an atheist. If you do, you're a theist. That's all it is. So it follows that when it comes to the question, "do you believe in a god", there can only be two kinds of people in the world, atheists and theists.
Again, I'm not saying you have to attach your identity to that label, or associate yourself with other atheists, but saying you don't believe in god, but you're not an atheist is like saying both your parents are human beings and your children are human beings, but you're not a human being. Not believing in any gods is the very definition of an atheist. In fact, it's the only definition.