@lemertens oh, my, you certainly do have some big problems on your hands. There are a couple of things you can look into:
1. The American CancerSociety frequently has drivers who will take patients for their chemo and then home. Or ask the chemotherapy center where he will go if they have any drivers who can assist. You can go with him the first few times, but you don’t need to go every time. I was actually glad when my husband didn’t come with me; I could read or sleep or whatever I wanted.
2. Call Aging Services in your area. They may have good suggestions for you. Your town may also have elder ‘buddies’ who will check in on isolated seniors.
3. The main thing right now is for you to care for yourself. You will be no good to anyone if you wear out and crash. I like the suggestions from @scottrl .
You had an ultrasound today. Can you relax for a bit now? You strike me as a very strong and special woman and we all care about you. If you don’t mind, would you share the results of the ultrasound?