Your last name and actually the baby still wouldnt get anything the baby would only benefit if the dna is done and the baby is legally his cause a last name doesnt prove anything
IF something were to happen to the father, DNA would be needed to claim any benefits as you are not married- regardless of name.
What benefits do you think this guy would have for the child, Social Security? (Has the guy been working and getting Social Security taken out of his check?)
I agree with the others, without a DNA test, you can name the baby the guy's last name all you want and it will not be proof of paternity. If it were the case that just a last name determined paternity legally, why not name your child with the last name of Buffett or Gates or Rockefeller? I would also bet that the reverse is true, the baby could be named Santa Claus McGee but if the DNA test showed that the guy is the baby's father, the baby's claim would be no less strong to get benefits. For example, if you were married and had not taken your husband's last name, you would still be entitled to your widow's rights if he died, no matter what your name is, and so would your kids be entitled to rights in their father's estate.
It is possible that you would have automatic rights to benefits if the two of you were married that you would have to prove, with a DNA test, if you were not married. But the proof is in the DNA test, not the name.
Talk to your own lawyer on this. Every jurisdiction is different. But I would bet that your message from someone who talked to a lawyer is partly lost in translation. Just naming the baby the guy's last name does not give the baby any rights.
Are you in U.S.? Giving baby his name will not change the guy's attitude. Some people lack conscience. At the very least there is something very emotionally wrong with him if he doesn't want to be involved with you or his child. Plus the child will be reminded that he's not in the picture when they write his name. In this case your kid should be named with the family that wants him/her.
I'm aware that DNA has to be done and secondly he is very well off and lets just he's military affiliated.
Lovecake98 its a lot more to our relationship everyone has a back story how ever I wish not to share all of that I just wanted to hear some one else's input but I thank you for the info