The older I get, the more I believe in taking one day at a time, nobody knows what is around the next corner, you say you want children in a few years, your girlfriend may want that too in a couple of years with hormones kicking in etc etc, twenty four is a strange age in my opinion, you just don't know what you want from your life on occassions in particular when depression plays apart. If you care for this girl, just roll with it, what will be is what will be and in the mean time a Mrs 100% Right may walk into your life.