PJH Designs says
"First, have you ever wondered what is being pinned on your blog to Pinterest if anything? Well here is the link to find out!"
Just type in http://pinterest.com/source/thenameofyourblog/
The mistake I made, was just copy/pasting my blog URL onto the end of this. You do not want the http:// part of your blog name. You want it to look like this:
It will also show all the pins that you, yourself may have added from your blog to Pinterest. Isn't that a nifty trick?