Who's last name should we use? Please read description first!

Melissa • Tegan Grace was welcomed into this world 10/27/2016 by two loving parents💕
So my boyfriend and I aren't married. We do plan to, however not for another four or five years most likely (if then, even). We're due for a baby in November. I'm very partial to my own last name, but he doesn't really care about his last name at all. I don't think I am going to change my last name when we get married. 
So who's should we use? He's leaving it up to me. 

Vote below to see results!