I'm against spanking. DH says it "worked for him" but I still am not comfortable with it but struggle to voice why it's wrong as my mind often goes blank.(Help please.)

I'm currently pregnant and if you read my post history, I had a horrific childhood. My father had no issues with beating me with a plastic or metal hanger, a belt, picking me up by my hair, throwing me, digging his nails so deep into my face it bled, pinning me to the ground and covering my nose and mouth until I passed out, deliberately smashing my head into the wall slapping/kicking me. My mom never defended me and told me I deserved it because I was a bad kid. They also repeatedly called me names and tore down my self worth. Basically it still traumatized me to this day and I'm NC with both of my parents and I'm hoping to keep it that way. The only way my parents will ever meet my child is if they somehow sue for grand parents rights and the court actually agreed to it but I WILL fight it.Anyway. DH is in the military. I told him about the way my parents physically and mentally abused me. I told him I'm not comfortable with spanking and he responded with "How will we get the kid to listen then?". I said I'm sure there's other methods. I also said that if he ever hurt our child the way my parents hurt me I would leave. He responded with "Obviously. There's a difference between whipping a kid with a belt and a tap on the bum." But I still am not okay with hitting.I don't know what to do. I'm waitlisted for pre-natal and parenting classes at the moment. I'm also hoping to get some books at the library. I just want a good argument as to why the concept of even "tapping" their bum is wrong to me.Help? via /r/Parenting http://ift.tt/2htETYL