In my case is if I don't do it, then there will NOT be any chance of me getting pregnant again as there was fluid trapped inside the uterus.
However, it is true that even if you manage to operate it , it does NOT mean that it will function again. I was aware of that but I had no choice.
Did your doctor tell you which part of the tube is block? My doctor told me that if it is block somewhere in the middle of the tube, then it is quite difficult to open it again. I was "kind of lucky" to have it block at the end but this also caused the fluid trapped inside my uterus. Blockage at the end part is easier to be fixed.
So ask your doctor for more details and see your options.