Help, please...I think I'm depressed.

A very long story short, I went through ALOT of emotional turmoil all last year and the beginning of this year. After it all ended, I thought I was over everything because I stopped feeling any type of hurt or sadness. I started focusing on my life to be where I want to be. I even share a few laughs with family every now and then.

But just the other night I realized something was...off. I wake up and go about my day, but something's changed. I feel empty. When I think of things that normally make me happy or sad, there is literally no reaction. It's like my emotions have just turned completely off. I never want to go anywhere anymore, I don't want to talk to friends...I just want to stay inside all day. I realized I've been that way since 15 weeks (I'm now 20+ weeks). I just feel like an empty shell. Not happy, not sad, not upset. Just empty. Like I should be doing this and that to prepare for my baby, but there's no motivation. When I finally told my mom about it, she said I'm most likely depressed and that it's very unhealthy for me and the baby. It could develop into something that'll make me do things I shouldn't, like self harm.

Has anyone else felt this way? I'm so scared and don't know what to do or who to talk to. I try to tell myself to be strong for my baby, but I'm just at a loss. It's gotten to the point where I wonder if I'll even be able to fully love my baby and be a good mom. Please help me...