You can purchase donates sperm thru a cryobank if he doesn't produce any. Otherwise IUIs and IVF are your options for low counts but your RE or Urologist would have to tell you if that was an option. Good luck :)
Have you seen an RE yet? Infertility docs can give you a few options depending on hos low the count is. Artificial insemination can work if the count is low but not too low. If his count is really low or the sperm can't penetrate the egg ivf may be your only option.
Be pro-active and talk to a specialist.
Good luck!