New site - don't want live yet but is published

[cindylee56]

Hi, I set up my sites yesterday with Genesis and child theme, and they are already viewable online. I must have hit the wrong button somewhere. Is there a way to make them
go un-live? If not would setting to "no-index" be a good idea so Google and other s.e.'s don't
pick up yet - I'm thinking this could hurt SEO, not to mention it's rather embarrassing.

If I can unpublish the sites and keep them down while building them, is there a way to preview how they will look without special plug ins?

Please advise or post to a thread or instructions on how to do this. I tried searching the forum but probably not using right search terms.

Also,not sure if this will complicate or help the matter, but I'm migrating from GoDaddy to Host Gator today - should have searched forum before choosing my host!