OP
I was in almost exactly your position a few years ago - not ready to put away the baby things, didn't feel I had finished having babies - but two awful pregnancies of which the memory was fading and I went for it.
It was really, really bad. I was that much older and extremely, knocked-out tired which I hadn't been with the other two, plus the extreme constant nausea made me want to not be here. All over again, but with two lovely boys who had to basically look after themselves for the first three or four months.
I stole that part of their lives from them, they were making their own sandwiches for supper and I couldn't get out of bed. The house was awful, etc etc. Months to recover to a state of 'normal' again.
Horrific. I can still see the signs of what happened in them now, and ds3 is 2 and a quarter. Also he is very hard work and sometimes I wonder why I did it - it was a huge, huge sacrifice, and not just in terms of the immediate effects on me. It was a sacrifice I forced them to make as well.
They both love him to pieces which is nice but honestly? I think if you have sworn you could never, ever go through it again, then bear that in mind as it was real, and it will be appalling all over again.
And then I had really bad SPD and all that sort of thing...I still feel wrecked now. It is a lot for your body to cope with, especially I think doing it twice in quick succession.
Sorry - I do understand, completely.
Is there someone else you would be happy to pass the baby stuff on to? I remember I was waiting for my sister's IVF to work out but it didn't, and she decided to stop, and that's when I thought I had to do it instead - very odd but there you go. Emotions are complex things. I was also 37/38 at the time and felt I had to decide NOW.