I am in my 8th month now and have been weighing this decision since the beginning. My son's dad left us after finding out i was 4 weeks pregnant. He physical abused me before and after he found out I was pregnant which lead to a restraining order and domestic violence charge against him. We already have a 4 year old son together who has his last name. I don't want to confuse my boys with why they have the same father but different last names. But their father has been verbally abusive to me and physically abusive to me and has even went as far as assaulting my dad. He has not been a good person or role model for our sons. I dont know if he deserves for either of them to have his last name. Although i wont change my 4 year olds cause he already used to his last name. But my newborn i am not sure. Any advice would be helpful.