It seems to me that your DH was in fact very sure about not wanting anymore children, but knew that you felt differently.
He wouldn’t have gone and had a vasectomy if he was ‘unsure’ if he wanted more.
Maybe you weren’t listening to him? Maybe you wrote off his feelings as unsure or maybe he just knew it would hurt you and didn’t want this? Who knows…
But he probably thought that if he had a secret vasectomy and in the future you wanted more children, he could pretend to try for kids without the risk.
It’s a terrible feeling to be the person who doesn’t want more children. I don’t.
DH and I have 1 son and that’s enough for me. DH would love to have another, he can get so sad over it and mourn for the little girl he never had.
It’s difficult to say no, and I’ve in the past considered pretending to agree whilst going on the pill, just so I can say nature made the decision for us and it’s not my fault. I’ve stopped short of doing this as I recognise that it is wrong…but I’m sure many people out there do take precautions whilst pretending they are completely onboard with having more kids, just to try to make their partner happy.