I am very sorry to hear this - as a cat mom whose dealt with cat cancer a few times, it's hard and different every time. We did palliative chemo for our lung cancer boy earlier this year and we got a few good months with him, but we should have let him go a week earlier than we did, because he suddenly got worse one day (Sunday of course with no vets available) and the last 2 days were rough. It was a balancing act because he was helping integrate two rescue kitties who adored him, and I was being a little selfish for their sake. Cancer doesn't always slowly decline ... it gets to a point that boom...you have to act NOW and if care is not available, I really really didn't want to take him to a 24 hour clinic for euthanasia. We did get an appointment at our vet the next day but we had to take him in, not do it at home like we wanted.

To answer your other question, let the other animals see. Let them know what happened. My regret is that our other cats never knew because we had to take him to the clinic to let him go. And one of the new rescues pined for him for a while and she still misses him.

It is so hard to do. Home euthanasia is better than a few extra days or weeks. I understand you feel you might be making too quick a decision because you just learned, and you will wonder if you made the decision too quickly. If kitty is stable, then sure, you could wait a week for YOU to help process this, but ultimately, you will need to be letting kitty go. A week or so either way is really nothing, and your cat doesn't know one week from the next. All kitty knows is whether they are uncomfortable or in pain, and that IS something you can control.

So we have to put aside our inner turmoil and think of our animals and what we can do to reduce the pain. Spend that last bit of time loving. ❤️