Working out with Endometriosis?

Options
I'm looking for any suggestions about how to workout with "monthly" cramping pain. For some people working out helps to relieve their cramps but ever since I was put on Depo Provera working out makes the pain worse. It could be what I do when I work out. I do a combination of weight lifting and between sets I jump rope. Any help would be much appreciated. Lately the pain gets so bad that I find it easier to just not work out. But I refuse to let this keep me from accomplishing my goals.