My wife miscarried and now I have the urge to leave her.
Is it because of the miscarriage?
Yes, it's not normal to be this stressed and fearful all the time. After the miscarriage, she has become very negative and I always end up receiving hard punches to my stomach and chest
From what I gather, it seems like you are being physically injured. If this is the case, it's important for you to seek support, maybe from a counselor or a support group. Your wife may need help going through the grieving process.
I want to help her get help because I love her.
It's good that you want to help your wife through this difficult time.