I've been doing some research on azoospermia and physical characteristics of ejaculate (sorry, IT people at work..i'm not a perv, i swear!)
and I found this:
"Azoospermia coupled with low ejaculate volume of nonclotting watery fluids fructose-negative, Usually implies an obstruction of the ejaculatory duct."
https://www.maleinfertility.org/new-evaluation.html
and this:
"There are only 2 possible reasons for the count being zero. One is because of a blockage of the ducts which carry the from the testes to the penis. This is called obstructive azoospermia, because it is a result of a block in the reproductive ducts ( passage). The other is due to testicular failure, in which the testes do not produce. This is called non-obstructive azoospermia ( a mouthful, which simply means that the problem is not because of a block).
The testicular size ; and a blood test for FSH are useful tools for determining if you have obstructive azoospermia or non-obstructive azoospermia. If your testes are small in size; and if the FSH is high, your chances of having non - obstructive azoospermia are high.
Men with obstructive azoospermia have normal testes which produce sperm normally, but whose passageway is blocked. This is usually a block at the level of the epididymis, and in these men the semen volume is normal; fructose is present; the pH is alkaline; and no sperm precursor cells are seen on semen analysis. On clinical examination, they typically have normal sized firm testes, but the epididymis is full and turgid.
Some men have obstructive azoospermia because of an absent vas deferens. Their semen volume is low ( 0.5 ml or less); the pH is acidic and the fructose is negative. The diagnosis can be confirmed by clinical examination, which shows the vas is absent. If the vas can be felt in these men, then the diagnosis is a seminal vesicle obstruction.
Men with non-obstructive azoospermia have a normal passageway, but abnormal testicular function, and their testes do not produce sperm normally. Some of these men may have small testes on clinical examination. The testicular failure may be partial, which means that only a few areas of the testes produce sperm, but this sperm production is not enough for it to be ejaculated. Other men may have complete testicular failure, which means there is no sperm production at all in the entire testes. The only way to differentiate between complete and partial testicular failure is by doing multiple testicular micro-biopsies to sample different areas of the testes and send them for pathological examination."
which gives me a lot of hope.