why is it so hurtful when someone doe not want to to have a child?

why is it so hurtful when your mom or someone doe not want to to have a child?
My mom does not want me to have a child now even though I do not want to have a child it hurts me that she does not want me to have a child now my dad is the opposite he wants me to have a child more than anything. she just thinks that I do not deserve to be a parent, that I dont have the skills to teach and raise a kid. I dont understand why i am so upset with that if I do not want to have a child.