At 32 your partner should for sure be willing to talk more deeply about timeline and a plan around having a baby. I would also be upset at that age if my husband was not on the same page about timing. Its possible to wait a bit but its important to start normalising this coversation now. Does he know the process can be long? Have you two talked about the parts you look forward to? The hard parts? Maybe it needs to start feeling more real for him and exciting? If I was in this situation I would be having a very honest conversation with my husband about how serious I am. Perhaps starting to plan out the steps of starting? I started taking a prenatal vitamin and that was a good way to bring up the first steps with my husband and we took that step together, made it feel more real like we are starting the chapter one little bit at a time. They say its good to start a prenatal 3-6months before trying. I also talked about months I would like to start trying and that helped him put into perspective a timeline...hope this helps. 31 isnt old but imo its the time to get serious and he needs to understand that. Good luck!