No, I don't think you are a theist :)
Our physics created the universe and those physics always existed. I personally favor that view, because any other view leads to "turtles all the way down".
But let's posit a creator. That could be a physics student in another universe who accidentally or purposely created our universe. I accept that as possible, but point out that it is just another turtle, as at some point we have to get to a physics that always existed. But we will leave that alone for just a minute.
Is my physics student a god (I expect you will say Yes)?