Temporary main page

Hi

I have wordpress installed. I have a theme installed and on that I already started adding the needed information.

Because it’s only in the beginning, it’s still a mess and I want, if people will, by mistake, get to my site, to see a “launch soon” page while I edit the real pages and see them “live” (behind the scenes).

Is it possible to define a temporary main page in wordpress while I edit the real pages and once I’m done, to remove that page and reveal the real ones?

Thanks