Exercise during IVF

Da
What do you do exercise-wise to keep fit, healthy, and/or sane during IVF
I usually go to the gym, but I'm so sore I just can't do anything above a fairly slow walk at the moment. But I've been doing a fair bit of swimming and it just feels great. It feels like the pressure on my abdomen is relieved while I'm in the water. 
What do you guys do?