I just wanted to advise all men that are thinking of possibly having children in the future to please freeze as many samples of your sperm as possible. This can easily be done at a local sperm bank or at most infertility clinics.
Also, you can look into sperm aspiration as a last resort. I was told that sperm can be retrieved with a needle even if you don't have a prostate.
When you're ready to have kids, try to do IVF for best chances of success (instead of insemination which requires a lot more sperm – this could potentially waste valuable frozen sperm). I'm very knowledgeable in the fertility subject area and post any questions that you have about the matter.
Best of luck to you.