My hubby was diagnosed azoospermic originally, started taking zinc, selenium,
l-
arginine,
l-carnitine. We had our second dd naturally (without assistance) to everyone's amazement. Our first dd was IUI with donor sperm and our own contribution. She also looks just like daddy. So who knows?
Yes, it's low, but it only takes 1 good sperm to fertilize an egg. An RE should be able to guide you with all the recommendations for "optimal sperm creation".
Good luck to you!