Conceiving after Testicular Cancer?%?

My husband was diagnosed with Stage 3 testicular cancer at the age of 27😢

And naturally we were terrified and anxious to begin his chemo treatment😬. Since we were dating at the time, I felt like I had no right to push the issue of sperm banking on him (so I kept quiet)🤫.3 months post chemo and his hair grew back we got married (best decision of my life)🤵🏼👰🏾

One year post chemo he was given a sperm analysis and is producing Zero sperm ❌ We’re currently 3 years post, and still no baby 👶🏽Does anyone know of any success stories? How long did it take to conceive?