Should we get an abortion.

I 20M had unprotected sex with my GF 18F and got her pregnant. I still live with my mom and we’re poor, I work full time in a factory. I think this child would ruin my life, i can barely get by on my own I can’t take care of a child yet. I told my mom who’s a Christian about it and she said that it’s murder, my GF is conflicted and doesn’t know if she should abort it to keep it, I’m also conflicted because I don’t know if I should even have a say since it isn’t my body. Feel like I should leave it up to my GF to decide, I’m leaning towards keeping it but still very conflicted.