Permalink/Archive Numbers

Hi,

Started using WordPress after seeing someone
else’s website and liking their site a lot!

I noticed that my first and only post has a
permalink/archive/postID number of “23”.
I’m wondering where the first 22 went to.
Do the archive numbers go up even when you
are just previewing your page?
I’m wondering how I can make my first post actually be #1.
I have a feeling that I would have to delete my blog
and begin again, but I’m not sure.
Will there be skipped numbers in the future
every time I preview a post?

hope someone can answer this.

thanks,

Rod