I really love Essense of Australia's bridal gowns. My favorite is:

But I can't find a boutique that has this dress. I have an appointment for early February at a boutique I've researched. I can try on similar styles from the same designer and then order the dress without ever having tried it on. Or I can pick a new dress (by the same designer).
I'm nervous! If I pick another dress am I always going to wonder? Has anyone else experienced this?