This sounds familiar did you post this before? Regardless, it is way uncool to issue an ultimatum to your SO, especially 1 year after him telling you it was okay to not be Catholic. Nobody should be allowed to try to force their religion on another. You are doing the best thing for the happiness of the both of you. You will both be free to find someone that matches each of you. As a bonus, no divorce proceedings or kids are involved. Your mother is being selfish by trying to make you have children before you are ready. If you are so inclined please post an update.