I'm not quite the same demographic as you, but I get it.
For me, it's simply not possible to have kids unless I adopted. And that ain't happening (adoption is a long, arduous, and expensive process and I'm only one person...wouldn't want to take that alone). I suppose technically my body might physically be able to produce kids...I haven't tried, but that's missing the point.
People sometimes ask me if I want kids and it's just such a silly question for someone like me. It's like asking if I had a mega mansion, how would I decorate the 7th bathroom? What I want is irrelevant because that's not at all in the realm of possibility.
I don't know if I would want kids or not. But since it's not possible, it's not worth dwelling over.