I am basically an atheist, but I put "other" just to avoid semantic traps. I don't believe in anything that I call "god," but it is certainly possible to define "god" in such a way that I would believe in "him" (the universe, natural law, etc.) And I've found that oftentimes the definition of "god" used is so logically incoherent that it would be wrong to say I don't believe in it, as that would imply an actual concept to negate. Rather, they are "not even wrong," and literally speaking nonsense.
So you are somewhere in between atheist and pantheist?