Do you mean you have only known him a few months and you guys are in separate cities?
My advice is to continue to be be in love, have romantic weekends together and wait to get married. Wait a year, until you are finished with your program and then you can relax and have a wonderful wedding and honeymoon. :)
eta: rereading your post, I think you have known him for over a year? and you do live in the same city. Well then I think it sounds wonderful - you'll be getting married this spring?