Should I be with him or not???

My boyfriend and I had happy relationship we used to had sex twice a day. He was always excited to have sex even when we were going on drive he couldn't wait to get in the place. Even though we use condom, last year  I got pregnant. That makes me so happy even though that was not in plan. But he didn't  want baby and for his sake I used home remedy for miscarriage and that hurts me and couldn't forgive myself. After 2 months we start sex again. But still I was not overcome with miscarriage so I left my apartment and moved to different place. After six month he wants me to move in with him so I did. Since the day I moved to other place we didn't had sex when I moved in to his place to till now we haven't have sex. I tried to talk with him he don't wanna talk and I tried to make out he avoid me. I did everything to make him feel like having sex but he didn't show me any reaction. I wonder how he can stay away from sex? Or there is a fault in me. Now I wonder if he is having sex with someone else or not. Should I be with him or not?