Am I wrong for this???

Alright ladies I need your help!!! Please share this with your SO and then decide based on both your findings.

Back story: I have a 5 yr old that has her fathers last name. Her father and I have never been together since she was born. I hate that she doesn’t have my name in her last name.

NOW: I’m pregnant with my second child. (Different father) I love my boyfriend of almost two years. I asked him when he was going to marry me and he hasn’t figured it out yet. He said he didn’t know(hasn’t thought about it) I told him how important it was for me to be married before we had a child. But GOD had different plans for us I guess. We pays all the bills/ lawyers for custody. I am very thankful that he does that and take care of him.

BUT the issue is now that I can’t help but feel that I want our baby to have my last name too. Just incase he doesn’t end up marrying me. I don’t want to make the same mistake of not naming my child with my last name as well. If it’s a boy I want it to be a JR. But I can’t have that until we are married. So I was thinking of when we get married of changing his name and labeling the child’s name as a JR.

Am I crazy for thinking this way?? I just feel like I don’t want my child to have his last name until I know for sure that I am going to have my boyfriends last name too. Am I acting crazy??? Is this odd to you??? I just feel like without the baby having my last name too on paper you can’t tell that it belongs to me as well. Idk maybe it’s my hormones but I’m really stuck in this. When I told my boyfriend he got really upset. :/