Shouldn't mothers love their children?

Those of you who have or had a mother who truly loved you, please know that you are one of the lucky ones.

My mother's final blow; "I hereby acknowledge that I have a daughter. (my name) and I am intentionally excluding her from this will."

I don't know what I did to make my mother hate me, other than the fact that I was born. I remember her screaming at me that she never wanted to have kids, maybe my sin was being the first born. My hurt isn't about money, I don't think there's much left. I just wish that I had been blessed with a loving mother.