Hello Poppy and welcome from me too.
As others have said this is a tremendously scary time, the not knowing etc.
Once you have all your results and you can start making plans it will get a little easier in some respects. You will at least know just what you are dealing with.
As has been said, the Toolkit from the site is excellent. Having read through it you can make notes on questions to ask when you see the consultant.
Make sure you write those questions down because you are bound to forget some of them due to nervousness.
Take a notebook and pen or ask if you can record the conversation for later.
I guarantee you will not remember all that is said, even though there will be two of you.
You may even hear the comments differently and put a different interpretation on them so a record of some sort helps.
Easier said than done but try not to panic at this stage.
There are many treatments available now.
There are a few men on here who know they are terminal and can only have their cancer kept at bay.
Some have lived many years like this and lead pretty full and active lives so even if the prognosis is worse than you want there is still hope. Treatments options seem to progress very quickly with Prostate cancer, there're new ones or combinations appearing all the time.
We were able to opt for permanent seed Brachytherapy. Treatment still a baby as far as it's use is concerned (I think about 10 years) compared to other treatments, but being recognised more and more.
By being proactive in researching the cancer it will help you both make informed decisions when the time comes. At the very least research will give you questions to ask for reassurance.
Don't be tempted to browse the web though. Not everything is relevant and some of it may sound scary so best leave browsing to UK recognised sites like this one, Cancer Research etc.
Ask any questions you like. I know you will get answers.
Best Wishes to both of you. We are all here and know how you feel, exactly how you feel.
Sandra