Young Marriage

My SO and I went ring shopping today. I am so super excited to be with this man. He is the number one greatest thing that has ever happened to me. He loves me to the moon and back and treats me like a princess. Marrying him would be a dream come true. But I am worried what people will think because of our age. I am 20 and in my third year of college. He is 19 and has a good steady job. We have been living together for a few months now. We have our little disputes but we always talk them through and get through them together. I had no idea that the boy I met at 15 would be the man that I fell in love with but he is. I guess I'm jut worried that maybe we are moving too fast. We have been together for over 4 years but we are are still young. What do you ladies think? Is it too soon? Or are we ready?