If he's reached the age of 19 and still has his V card, then trust me, you hold all the power in this situation. Thus far in his life, he has been able to convince exactly zero girls to have sex with him. And here you are, so very very close to agreeing. He's not going to lose interest if you decide you want to wait, because he knows from experience that his options are limited. Sure, he might seem like the type of guy who is confident and could be with other girls. But deep down he knows his best chance of losing his V card is waiting for you.

The same applies to condom use. There is absolutely no way you should have sex with him without a condom, as other commenters have drilled home. He will absolutely comply, because wearing a condom and losing his V card is much better than going another year as a virgin fapping to internet porn.

The art of the deal.