I think you guys may just be incompatible then. Because you know the second the wedding is over it'll be the same thing with pushing kids, and you'll feel trapped in a life you never really asked for. There are clearly a number of other issues in your relationship, like her not setting ANY boundaries with her family (seriously, she needs to tell them to butt out of your relationship), her making snide comments about how you spend your money, not being willing to have a discussion about more reasonable timelines, and basically just making everything about what she wants. It doesn't really sound like you guys have the best relationship even if you ignore the marriage stuff. She doesn't seem to really understand (or want to understand) what compromise means, and that is integral to any successful relationship.