i (18F) want to save my virginity for marriage, but me and my boyfriend are struggling with waiting

My boyfriend and I are both Christians. We haven’t had sex but have been kind of struggling to wait. I’m a virgin, and he’s not (but he’s waiting with me). It just feels really difficult for us to wait. My boyfriend has been bringing up marriage so we’ve been talking about it. He’s also mentioned how he wants to talk to my dad and get his blessing.

My dad likes/approves of him, but my boyfriend and I have only been together for a little over 6 months and i’m only 18.. (but would be 19 by the time we ended up getting engaged/married). So I’m not sure how my dad will feel about it exactly or if he’ll think it’s too soon. What do you think about getting married this soon and this young? (my boyfriend is a little older though if that matters, so it would just be me who is really young when we get married)

Also, I get that it probably sounds like this, but we wouldn’t be getting married JUST to be able to have sex. That’s a reason for marriage, but not the only reason. We love each other and want to be married