@rhubi I haven't yet but I have talked to a peer support worker who has. They advised a few things.
Stay in touch with your health provider and don't worry about contacting them if you think something is wrong.
Buy ring cushions, lots and lots and lots of of thick pads. Lots more lube than you think a person (or even a group of people) could ever need and a baby changing mat (or two) for your dilations.
She really stressed the lube thing...