Cooly22,
Don't give in. I don't know you or your boyfiend, but I'll give it to you straight. You need to sit down with him and have a serious conversation with him. You need to ask him some questions to which his answer will be telling. Ask him if he loves you. He will probably say, "yes, of course I do. That's why I want to be with you and make love to you." or something like that. Then say to him something like this, "Then show me you love me." to which he may say something like, "Well, that's what I'm trying to do. I want to show you how much I love you by making love to you." or something like that. You need to tell him that if he truly loves you then he will want the very best for you. What's that? HEAVEN. The highest form of love is self-sacrificial love. love that will cause him to deny himself until marriage because he loves and respects you enough to make sure he doesn't do anything that would even remotely put your soul in danger of grave sin. Sexual impurity is a grave matter and that includes sex before marriage (fornication).
You are also going to have to be ready to make tough choices yourself, one of which is to end the relationship if he is not willing to love you the way you should and need to be loved. If he's not willing to back off and do that, then you have your answer to whether he is really in love with you or he is just loves the way you make him feel and he's looking for "new" ways for you to make him feel.
Please take this serious and pray about this. You know the answer already. I have a 17 year-old daughter and she has been dating a boy (the first real boyfiend she has had too) and we had him over for dinner, which is what we required before we would even consider letter Sarah date him, and I made sure he understood what I am sharing with you. The only reason you or any of us should be dating is if we are looking for our future spouse. We should be praying everyday as I pray for my kids future spouses, even though they are between the ages of 17 years and 19 months. I pray that God protects and leads their future spouse and that they are godly and pure. You do the same and God will lead you to the perfect man he wants you to spend the rest of your life with. You do that and your wedding day and your wedding night will be the best day and night of your life.
God bless,