Moving in with baby's father

I want to be able to live with my baby's father for the end of my pregnancy so he can be there when I go into labor. Also, I want him around when the baby is born. He wants that too but the problem is, I'm 17 and my mom won't let me move out or him move in. Did anyone else go through this? I'm 6 months now and I'm hoping she will change her mind. I want to feel like a family for my baby. And it would be best if we lived together.