Do you know if he wants children? Adopting is always an option if you can’t have them and want them. If you’re both 39, though, it might not even be on his mind as that’s kind of late in life to start having kids, so you might find that that won’t be an issue with him at all anyway.
Do you think you might be focusing more on reasons that he might not want to be with you than focusing on reasons why he DOES? He has been with you for a long time, so he clearly has lots of reasons why he is choosing to be. Maybe taking some time to write down all of the things you think he might like about you or that he’s told you he likes will help you reframe how you’re thinking.
Though I run this site, it is not mine. It's ours. It's not about me. It's about us. Your stories and your wisdom are just as meaningful as mine. 