Ready- Yeah deciding when to stop ttc is something I've thought about for months. I'm torn between feeling liberated and terrified- i know if I mention it to OH he'll be happy to stop and I'm worried I'll change my mind. At the moment I feel I'd like a year off from the hassle of ttc etc and if I still want to adopt/foster in a year to start looking into it then. We did look at fostering + adoption before OH had the snip + said it was definately a future option for us. I just hope we all find peace whatever happens

Yes, I hope we all find peace too.

Realistically, there are no other options for us.
There are certain events or choices I've made because I thought I would have another baby, and now it's almost embarrassing.

We got the bigger SUV to accommodate 4 kids and now it's just extra roomy for the dog.

Or how we go to the amusement park with the kids and I keep thinking that NEXT year I won't get to go on the big roller coaster because I will be pregnant, if not caring for an infant.
Now, I just want to stop those thoughts and focus on what is here. I CAN go on the roller coaster because I won't be pregnant. We CAN get a smaller truck because the dog doesn't need that much space. I think it will be liberating like you said. Even though it's not what I want, I guess I have to resign myself to it to find peace. Better to accept it and move on, for me at least.
I'm just not sure how to stop.

There's still that infinitesimally small chance that it will happen if we keep having unprotected sex. What are you going to do? Any form of birth control or just leave everything alone and shift your focus?
I think it's impossible for me to not think about ttc if we are having unprotected sex. Unprotected sex and "trying" have always been synonyms for me.
Any suggestions?
I've asked on bnb before how others are moving on, but there obviously isn't much support out there for it. People are here to conceive, not giving up. I'm at a loss really. People have told me I haven't tried long enough to consider stopping.

We've discussed a vasectomy before and I think it will eventually lead to it, but it sounds really emotionally painful to consider it at this point.