I've been with my DH coming up 15 years we're now early-mid 40s. I've always been up front about not wanting kids, as my parents basically didn't seem to like each other much but stayed together for the kids. It was quite a toxic upbringing and both my elder brothers have also remained CF. I basically don't want to feel responsible for another human's mental and physical wellbeing, but am happy to lookout for friend's and family's kids if they feel I can help. OH has always said he thought having kids was something he would do, not out of any burning desire to have children, but the final decision rests with me as he doesn't want to be SAHP. I've said if he really wants a family he just needs to tell me as it won't happen with me and I'd respectfully split with him as, to me, it's a dealbreaker in a relationship. I wouldn't expect him to give up the opportunity to have children to stay with me.
My issue is since I hit 40, he's still prefacing conversations about the future with 'well if I'm not having children I'll do xyz....' I don't know if I'm reading too much into it, but I tell him in my early 40s my chances of conceiving and carrying a healthy baby to term, even if I wanted to (which I don't) are low and he'll follow up by saying 'I know women who have'. Has anyone experienced similar, or is this just a natural part of accepting you've made a different life choice to your parents?