Congratulations!!
With dd, I had terrible hemmorhoids. Yes, they can feel like grapes! It's so fun.
I dealt with it multiple ways: a salve from motherlove called "rhoid balm", frequent hot herbal sitz baths (for my perenium tear and stitches), applying witch hazel extract directly with tp every time my bottom was bare, sitting on an inflatable donut thing, keeping the area scrupulously clean, and eating well to prevent constipation. I also took a lot of flax seed oil and continued drinking a ton of nettles. This time I would add homeopathic hamemelis 30c (or is it 30x??) to my list of remedies.
Good luck, and enjoy your babymoon!