Help.. please

I am so emotionally hurt and exhausted, I feel so alone and unwanted... I don’t feel good about myself. I feel like shit inside and out... I feel like I fuck everything up and ruin everything.. I don’t know how to be happy anymore. I don’t love myself anymore... I put all my love into a man that couldn’t fight for our relationship because he wanted me to be strong when he was being harsh.. I’m 21 ... 15 weeks 5 days pregnant with my first and alone