Personally, I think you should see a Dr. One guy I knew developed an ovarian cyst after he had been on T for a while. I don't know what your insurance covers, but if you do have a cyst and want an OVH, it would count as a non-elective procedure instead of a transgender procedure and would probably be covered.
People are comfortable at different stages of transition as far as how much surgery they want. As long as you have ovaries, you will still make some estrogen and have competing hormones. I don't know the long term results of that, but regardless, if you didn't have cramps before, you really should see your Dr.
sam1234