I am one of those that celticknotwork is refering to.
I had my TAH exactly 10 wks ago yesterday and I started riding the end of my sixth week.
I started out by just walking around for about 15 minutes to get the feeling back. I used my abdominal binder the first time and I have been using it since then. I am back to riding at least five times a week.
For the most part I have been mostly walking but that is do to the fact that my horse and I are so severely out of shape.
The last time I got a work out when riding was in September 2009. Then I had 8 wks of tendonitis in my shoulder, several 3 foot blizzards, a hysterectomy, etc. So the two of us have to slowly build ourselves up. His issues are that he is overweight, feet need to be done so he is a little off, and he is lazy.
My advice would be when you are able to ride; take it easy and slow.
I really did not have any pain or discomfort in my abdomen. I just felt a little bit of soreness in my inner thighs from not having ridden in 6 wks. I felt like a bowlegged cowboy that has been on a cattle drive for 10 hrs straight.
I just try to do a little more each time I ride. Last week I actually rode my horse and my sister's horse.
Happy trails to you.