you either believe there is a creator or you don't. So yes there are just two posistions and they would be right to say there is only one other possibility, creationism.
NO! If the big bang didn't happen, there are infinite possibilities to what could've happened. You can't just assume something with nothing to base your assumption on. Each of the stars could have formed by some other means. Saying that it must have been God is like saying "if you don't believe in god, you're a bad person," which is simply not true, there's more than two options.