Walking and doing your kegels will help strengthen your pelvic muscles for the BIG DAY. And the cool thing about kegels (besides building pelvic muscles), is that you can do them just about anywhere and anytime. You can do them while folding, laundry, washing dishes, shopping, chatting online, reading, or while working for example. And, also, no one will be aware you're doing them!
How to do Kegel exercises
First, as you are sitting or lying down, try to contract the muscles you would use to stop urinating. You should feel your pelvic muscles squeezing your urethra and anus. If your stomach or buttocks muscles tighten, you are not exercising the right muscles.
When you've found the right way to contract the pelvic muscles, squeeze for 3 seconds and then relax for 3 seconds.
Repeat this exercise 10 to 15 times each session. Try to do this at least 3 times a day.
Other exercises I did were simple leg lifts on the bed or up against a wall. I also had my yoga ball.