I need advice

Because of my depression and the person I'm having my baby with, I'm not excited at all for this pregnancy. My mom is very excited and supportive but I just had to tell her that it's uncomfortable to talk about my belly and the baby in general. I wonder if I will get excited I'm scared that I won't be a good mom because of how I feel now. There's a part of me that wants to give this baby the world since the dad isn't involved. I'm scared. Will I ever feel different??