Should my son take my last name ? Or his fathers ??

Savannah

So my bf and I are both 18 and our pregnancy was a TOTAL surprise. Neither of us wanted it at first but we both fell in love with our beautiful baby boy. I am 35 wks + 4 days and Im starting to get a sunken feeling in my chest.Im not sure if my bf ever wanted to marry me or if he even plans to propose in the future. I know most women just allow the baby to take the fathers last name, but what about me ? I grew a living being for 10 months and I would want him to have a piece of me, you know? It would be different if I were married but idk. I just cant help feeling that as soon as my baby is born and I sign his last name on our baby's certificate, he will break up with me. Dont get me wrong, our relationship is golden ! Its just, I dont think that Im the woman he wants to spend fhe rest of his life with and it would shatter my soul if that ends up being the truth. I want nothing more than to marry him and give our child his last name, but if marriage isnt apart of the plan, who's last name does he get ??