Feel like my heart has been ripped from my chest

Today I began to miscarry. I go to my OB tomorrow to confirm, but my heart already knows. I hear of women suffering this pain all the time as if it is something as simple and as common as stubbing your toe. But to experience this first hand, I can’t even describe this emotional torment. I have asked myself countless times already what I did wrong, did I become too stressed? But I don’t believe there will be such a simple answer. I pray I somehow find peace in the matter and write this here because I know so many women hear understand the complete devastation I am feeling.