I don't wanna get pregnant

My fiancé and I are in a long distance relationship. The last time we had sex was about a year a go. He asked why I didn't get pregnant since he came in me every time and I told him I'm on Depo shot. He made me stop my birth control but I wasn't bordered since we were apart. I'm suppose to travel in a few months to see him. I don't want the idea of getting pregnant to interrupt our sex life but I don't wanna take the Depo and lie to him. What do I do?