The good news is that many men with prostatitis and epididymitis have children and sometimes lots of children. In addition there may be things that one could do if infertility was caused by these diseases. See the posts below, especially the first one. Try to get your semen tested for WBCs.

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12477513&dopt=Abstract
E-mail the author of the above study at:

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12866275&dopt=Abstract

http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=12479033&dopt=Abstract