You're honestly better off making sure your dress isn't too complicated to adjust when you need to use the toilet. Bridal diapers seem to be becoming a little more popular these days, but for centuries women have made do with struggling with their wedding gowns to use the toilet...wearing a diaper so you don't have to go to the trouble is lazy, and frankly...disgusting.
OMG, I've never heard of such a thing! I know when I had to go to the bathroom on my wedding day, a couple of my bridesmaids helped me...they lifted my train and backed into the bathroom stall first and then I backed in after them. It was actually quite a funny procedure!! I can't imagine wearing a diaper on your wedding day...yuck!!!
I've honestly never heard of 'bridal diapers'. If you have troubles in that area, however, you could always try the adult incontinence product, "Depend".
I agree - I had never heard of this before, and I am disturbed!
a what? O_o