I'm so sorry to hear what you're going through. It is incredibly hard :/
I just joined this forum too and my DH is also dealing with Azoospermia. We've been trying for 3 1/2 years and he is now 29 and I'm 25. I've been through the full fertility workup and am fine but they finally tested DH and found the issue. His SA results were:
SA #1: Rare motile sperm found (rare = 1-3 total)
SA #2: Rare non-motile sperm found
SA #3: Rare non-motile sperm found
SA #4: 0 sperm found.
All of his blood tests and hormone levels have come out completely normal, so the Dr's think there must be an obstruction. He's had a testicular ultrasound and a prostate ultrasound and those looked normal except there is a bit of thickening to the "tubes" (whatever they're called) that carry the sperm. He was given a 6-8 week course of antibiotics between SA #3 and #4 as a shot in the dark but it didn't help and we were devastated with the result of SA #4. He's scheduled to have a 3 part surgery in May. The first part is the testicular biopsy to see if there is sperm production and to freeze any sperm they find for ICSI/IVF use. The 2nd part is a dye test to find the obstruction if sperm production is fine, and then 3rd to try to repair the obstruction if at all possible.
DH had an inguinal hernia repaired when he was 6 that we've wondered could be the cause of this, but it was only on one side so our Dr thinks it wouldn't take the sperm count down to nothing.
We're very anxious to find out more with the surgery as it's been such a long, frustrating, and heartbreaking road. We don't know anyone with this same problem. Both of us are young and healthy so nobody can understand that we are infertile. We live in the US and our insurance doesn't cover anything beyond finding out the cause of infertility, so the part of the surgery to repair the issue will cost us $10,000 out of pocket alone. We are overwhelmed with the thought of paying that much, it not working, and then having to come up with all the money for ICSI. It sounds like where you are you can get some of these things paid for which is amazing!
Don't lose hope yet. Depending on what the specialist finds, you have options! Whether it's ICSI, surgery, donor sperm, embryo adoption, or adopting a child, you will become a parent somehow.