Sadly OP, while this discussion is interesting, it's not really relevant to your situation. Even if every woman here says 'anything up to 45 is fine!' you're still going to be married to a man who doesn't want to have kids with you. That's your issue here, and what you need to focus on addressing.
Can you imagine never having a child? Considering it might not be easy or even possible at your age (or any age to be fair)? Would you consider surrogacy, IVF, sperm donor, adoption, to do it alone? How will you feel if you sacrifice having a child and then break up in a decade when it's too late to have a child? Why didn't you discuss this before marriage?
I'd proceed with the assumption he isn't going to change his mind and you need to decide whether to prioritise the marriage and let go of the desire to have a child, or whether you think the desire is more important, separate from him and pursue that aggressively.
FWIW I'm only 29, I want kids desperately. My last relationship ended as I was ready and he wasn't/didn't know if or when he'd ever be ready. It was the best decision despite how painful it was as I'd rather be single and working towards having a family than with someone where I know it isn't gonna happen. We split and I threw my energies into my career so that when I do have kids I have the best environment possible for them, and met someone who also wants them, I can't predict the future or whether I'll end up having them but we have a date in the next couple years to start trying. I'm lucky to have the luxury of time so I know it's not applicable to you quite the same... but you're not alone. Many many people have to deal with the pain of wanting a child but being with someone who doesn't... just like others have to deal with not wanting them but feeling pressured into it or like they're making their partner miserable. Hence why I now favour talking openly about kids and plans for the future early in a relationship so you reduce the risk of this happening (I did do that with ex but he changed his mind 😩).
I really hope this thread has given you some food for thought OP.