I just did the same thing six months ago! It was easier for me because my boyfreind moved thousands of miles away and we broke up. But it has really been a blessing and pray it will be a blessing for you as well. God has really revealed some things to me about sex and men and he has never been able to before because I was so deep in sin. I'm sure he will do the same for you and this will strenghthen your relationship with God(1st) and then the one with you boyfriend(2nd). Also you have to stay in the word of the lord in order to fight those urges from you flesh and your ego and don't forget prayer so that God can give you strength.

Be Blessed
Tiffany