So I was wondering...

At which point would you call yourself an author?

I know I'm a writer because I'm in the process of writing my first book. I haven't had anything published yet.

That being said, I'm under the impression that I would call myself an author only after I've had a book published.
Would I be right in saying so or would you say you're an author from the moment you start undertaking this mammoth task?

What do you guys think?