Hi Cronofire,
Sorry to hear you're feeling so low! shoot me down if I'm wrong, but it sounds as if you have just had a big loss of the dreams and hopes you had for a child etc., even if the news could be better in the future,it's bad now and you have the right to grieve.
That is on top of the effects of not being able to find a suitable job has on your self esteem and hope you feel you can have for the future.

As you say, things will get better, or at least, you will accommodate to anything that may not be able to be changed and turn it into a new start or something like that. Meanwhile, maybe you need some space to process how you feel and let yourself find your feet in this storm.
Is your wife finding this difficult too? Communicating about all this with her, and giving her space to have her emotions too when she needs to will serve you well in the long term.

In the meantime, be kind to yourself, how would you treat a good friend in the same situation? Well, that's your prescription!
Best wishes for your forthcoming tests and I wish you peace whatever is in store.