Need to vent. Don't feel good enough for my SO and unborn baby.

I'm not sure if this is just hormones but I just don't feel good about myself today. I've been crying all day. My SO is at work. I'm not good enough for him or my baby. They deserve the best and that's not me. I feel like once she's born in Feb to just let him care for her and take off. It hurts my heart to think about doing that because I love her so much and don't wanna leave her :(

*side note: I'm not suicidal or anything. I'm just feeling blue today :(