When should I get a Brazilian wax (my first) before my wedding and week long honeymoon? Any suggestions?

A few days before the wedding. Since it’s your first time getting it, give it a couple days for redness/any issues to go away. It will last a while so you should be good for a few weeks even after your honeymoon

I’d personally go 2-4 days before.

I’d say maybe a week before since is your first and it will be red and uncomfortable while having sex