Hi Anne,
In my experience (and I've had 5 surgeries in the last 6 months), I waited until I had a day where the pain was very minimal, and even then, was very cautious and careful as not to have any "slip-ups", which could end up in a lot of pain. I think it's up to you as to how comfortable you feel, but theres no reason why you can't go ahead! Just be careful!
I have to admit that I haven't had a lot of it in the last 6 months, because my pain has been to high, but maybe once a fortnight (which is a LOT less than anyone would like, I am sure!).
Go for it, when you feel ready, and take care :)