Feeling down...

So..I'm seeing a lot of people getting engaged and it's great and all but when will it be my turn? My SO and I have only been together for 1 year and 3 months, which isn't long I know. But I can't get the thought out of my head that I want to become more..I've talked to him and everytime he says "I think about it every day" or "I wasn't grown up to that life style". I'm starting to think he will never be ready to the next step. What do I do?