Commit or not to Commit?

Need some advice. My boyfriend of 3 years has made our future life plan that I am not entirely thrilled with. He wants us to get a house in the next two years, then maybe have a kid or two, and then get married. If I average this out, it may not be another 5 years or so until marriage. I am 34 and always believe in marriage first. I am nervous about this plan and I shared my feelings with him. He claims he wants to wait because of my large student loan debt and low credit score. What else should I do to convince him marriage first?