I noticed in an earlier post, something about the Piper being a "surprise". Since you're the Bride, I doubt that would be the case in this instance, but I'd think it would always be a bad idea to surprise the Bride at her wedding. I have piped a wedding where I was a surprise for the Bride's Father. That turned out very well.
As has been mentioned, most folks don't really know much about pipe music. When asked to play at a wedding I ask the Bride if she wants the processional/recessional (or whatever) to be stately, or sprightly, and then choose tunes accordingly. So far, that practice has worked well.