Good evening @EmeraldJeanie, just seen your post. Firstly, I am so sorry to read your news about your husband but I thought it might be useful to give you some practical things to do to help face what is coming. Get your closest friends to set up a WhatsApp group to deal with all the news and updates about Mr EmeraldJeanie. It might be easiest for you to do the first post, explaining that rather than speaking to or updating them individually, you will be using WhatsApp. Then turn off the notifications and only go in there when you want to. Let your friend be the admin and do the heavy lifting.
if, as you suspect the prognosis is poor, then have the conversations, what he would like his funeral to look like, which songs, who is banned and who should speak. Next make sure you know where documents are, and what his passwords are, this makes life a little easier.
You friends will ask what they can do, so start a list, it can be as simple as lifts to hospital, could you run a wash though our machine… water the garden, your friends will want to make a difference, no matter how little, this will free up your time, too, for more important things.
i have had to do what you are doing now several times, it is never easy, it is always a shock, but doing some of the above has always made me feel in control of a small bit of it.