Views on getting married for the babies arrival

First time pregnant with someone you want to spend your life with.... 
MY parents views: Must get married right away before the babies born. They have not told family until we have a marriage date.
His mums views: wait until after there is no rush.
My views: meet me half way and let's sign papers for the baby and get married when it suits us. Proud to be doing this for the birth of our baby. Giving a sense of ease and not having to worry about the last name of the baby and also for me, I don't want to be a single mum or a mum that's not married.
His views: unsure about signing paper work, would like to wait and do things the way he was planning dispute the baby. He will sign papers if he has to.
Your views on this?....