Relationship advice!!

I'm not looking for sympathy or any one to fill sorry for me . I just need some advice plz. So I'm in a long distance relationship with my SO. We been together for about 18 months. Well lately he's been really distance. Mind u he works 2 12hr jobs hardly ever has time for anyone . Well I recently had a miscarriage with his child . And ever since he found out it's like he hardly wants to talk. And when we do talk or when I talk about the baby. It's like he avoids the subject. Or when he sees me hurt rather then be there and be supportive he pushes me away we don't see each other that often he doesn't call me as much. I'm just wanting to know based off what I told u .  Did I do something wrong?? Hurting really bad. I love this man . I know he cares but I feel like he's hurt to . He really wanted this baby. And I feel like it's all my fault why he's mad