Marry Someone I Love?

I am a 21 year old female, who is responsible for my age. I have just attained an AAS degree and do have a brand new car, good job. I also have a best friend for 2 years (22 years old) who has the same, and is finishing up his 2 year degree. My best friend of 2 years told me he loves me alot and I love him too. Well we want to get married. We`ve talked about this a couple of months , so we are wanting to go ahead and go through with it. We`re Christians, so we`ve never had sex,lived together, he`s just been my best friend and been with me through everything. We are doing it the right and old-fashioned way. Because we just broke it to our families that we want to do this soon, but will more likely have a wedding later when we save up more money, our family thinks we are crazy. They are not happy with it and I don`t know what to do. After this semester of school, (I am still continuing my education) I am probably going to be moving out of state. He wants to be married to me and help me through the process and go with me. Should we put off the marriage because are parents don`t approve?.. Everyone thinks we are great for eachother, but the shock was too much for the family. And people think the decision was too quick. Ofcourse it was a quick reveal for the family. "Mom I`m getting married next week, is not the best way to break it" but I do love him and there is a wonderful 3 day Christian event going on that we are attending and have to get a hotel for. I think it is a perfect honeymoon as well, and we know with our love and wanting to be married if we stop the engagement due to our parents then take off together for the weekend, it will be uncomfortable being together in a hotel and we`d probably wind up leaving.... What should I do? Any suggestions I do appreciate . Thanks and God bless ....