Your last name and get to court for child support.

use ur last name...I was in the same situation 7 yrs ago and i gave my first child her bio-dads last name...I've regretted it ever since and there's nothing I can do to change it...

Use your last name only I been through this myself I have 2 children with my last name I did it because they are with me only..father gone and I don't care to hear his last name call when I take them to appointments and school.. he don't he gets no recognition.. I grew with my deadbeat dads last name and I don't know him.. I wished my mom would have gave me hers

Its not a chance of getting back together hyphenation could work though I feel weird using my last name but he has shown zero interest in being involved he's only asked once what was going on the majority of the pregnancy he has been trying to get me to put her up for adoption and got pissed off when I told him I couldn't do it... thanks for the ideas ladies @skand @emily18234

Use your last name. If things change later on with him, I believe you can change it to his if you wish. However, if you put him on the birth certificate and he doesn't show any interest until years down the road, he still has every right as a father wether you want him in their life at that point or not. Also that could be very confusing for a child. My sisters oldest is going through it right now. She had the child's last name as his and hers with a hyphen, and although for 6 years every document and anything with her name was just my sisters last name, the BD decided 6 yrs later to take her to court and got visitation every weekend. So it's been a lot of explaining, considering she grew up with my sister's husband as her "dad".

Bring it up to him and if he doesn't respond, do yours. If he does you can always agree to a hyphenated last name.

U can use ur last name then change it down the road if u guys get back together. Just a thought.