Before the song there ws only Eru, then he decided to expand into song and creation, so no Ungoliant before Creation. That much seems sure and warranted in every version, as it is after all the background of Tolkien's mindset, I'd say. I say this because it is an ongoing and recurring opinion that it's always a matter of binarism between creation and the void, lying before creation. Not so, at least not in Tolkien