Promise Rings?

I’m 17 and I’ve had many relationships in the past, but this feels like my most real one. I’ve been dating this amazing guy for only a month, but it feels like we’ve always been together. We have almost all the same values and he’s more than open to coming to church with me even though he’s not sure about God right now. It means the world to me, and he means the world to me. He fits perfectly with my family and with me. He’s kind and caring and everything I could ask for in a man. I don’t see us ever breaking up unless something dramatic happens, but that could be because our relationship is new.

I’ve never been one to think of marriage or promise rings in a relationship, let alone THIS early because I’m very realistic with timing and our ages, but I just can’t stop wanting to plan my life with him? I want to be with him for as long as we can be, and he agrees. We’re both very open in our feelings for each other and as far as I can tell, he feels the same way as I do. But anyway, I really want to ask him for a promise ring, but I don’t want to freak him out because of how early our relationship is or anything. Any thoughts/ideas/tips?