I don't think you're reading the same posts I am.
The OP, already in her early 30s, got together with a man already in his mid 30s who said he wanted to have children. Then when she'd already invested two years in the relationship he got cold feet. He didn't say, "actually, I don't want kids" though. He said the idea scared him, allowing her to hope that he'd get over his fear and do it anyway. (Because who isn't at least a little bit scared of having kids?)
She's given him another year and a half and he's still dithering. But now he's saying that he is ready to have kids but their relationship isn't in a good enough place. Well yeah, their relationship isn't in a good place right now because the OP has changed her job, sold her house, both metaphorically and literally put all her eggs in one basket for him and her time to become a mother is running out.
If he has changed his mind about wanting children, he needs to say, "I don't want children." Not, "I'm scared." Not, "I am ready for children but our relationship isn't in a good place right now. But, "I don't want children."
If he wants children someday but not right now with the OP, he needs to say, "I don't want to have children with you right now and I might never want to have children with you, so either you make your peace with that or we should go our separate ways."
If he's not sure whether he wants children or not he needs to say, "I don't know whether I want children someday and I need more time to decide. I have the luxury of time but you don't, so if this is a deal-breaker for you then we are not compatible and we should go our separate ways."
He's not saying any of that.
He's actually now saying he's ready for children in an abstract sense but not with the OP right now because their relationship isn't good at the moment. As if the fact that their relationship isn't good at the moment is all the OP's fault, and nothing to do with the fact that she's getting anxious because her time is running out and he's still FUCKING DITHERING.
It reads as though, having arsed about for the last few years and whinged about how the idea of having kids "scares him", he's now turned round and said, "Actually I am ready for kids now and I would be willing to have them with you now if you'd been more of a cool girl and not tried to hurry me along. But because you put pressure on me I'm now going to double down and keep wasting your time just to punish you."
Poor man, indeed.