I dont think he'll ever understand

I had a miscarriage last mothers day and my boyfriend blows it off like its nothing. He says that He is tired of me getting my hopes up just because I'm a little late for my period and experiencing some symptoms of pregnancy. And then when my period comes i get super depressed and he yells at me. All i want is to be held and told that everything will be ok. He just isnt very emotionally attached and hasnt been for awhile. Weve been together three years this July and i just dont know what to do. Everytime i try to talk to him he shuts me down.

I really dont know what to do. Im so tired of being pushed aside by everyone.. :(