I pray you will not compromise your moral standards. God will honor you for keeping yourself sexually pure, and some day when He leads you to the man He has chosen for your husband, you will be thankful you maintained those standards.
Listen: If your boyfriend truly loved you, he would respect you for your commitment to moral purity, and would not be putting this pressure on you. You see, he has tried to make sex the test of your love for him but that is the wrong point. The real question you should be asking yourself is this: What should be the test of his love for me? It should be his respect for you, and his appreciation for your moral convictions.
Don't let your fear that you may lose him make you do something you'll only regret. After all, if he is so interested in having sex with you, do you really want to spend the rest of your life with him? The argument he is using is almost as old as the human race–and to be blunt, it's motivated by selfishness, not love.
Instead, trust God for your future. Put your life in Christ's hands, and then ask Him to guide you in this very important area of your life. Let your prayer be that of the Psalmist: "Teach me to do your will, for you are my God; may your good Spirit lead me" (Psalm 143:10).