Do you think you might have hyperemesis gravidarum? I have had that and my life was like what you describe (including the exhausted husband). Are you taking any nausea meds? In my experience, it didn't let up until about 18 weeks.
I can't imagine how you could push yourself out of bed. Maaaaybe just flump to the floor nearby the bed and do some very simple stretches. It's REALLY good to stretch the back of the legs, the piriformis and then rest down into a deep squat for pregnancy and the earlier you start the better with that. And then just plop back down in bed after that while you allow the blood to pump for a bit before deciding if you can get up.
I literally moved my nest from room to room as best I could and just let my daughter crawl all over me and I would tend to her the best I could; reading, singing...ahem, pushing the play button on a show again. Not my best parenting for sure, but when you're in survival mode you just do what you have to do.
Now that I'm pregnant again, picturing the worst, I have wondered if it would be THAT awful if my kids had take out and fast food every day for 4 months of their whole entire lives. Because that might be our reality soon if HG happens again. When I look at it that way, it doesn't seem as monumental.
Just go as fast as you can but as slow as you must. You can't talk your body out of reacting to pregnancy. Maybe look into some binaural beats that you can listen to on headphones if you do try to get up and move about. It can help with nausea, dizziness, headaches, exhaustion, etc.