Depression after miscarriage ..

I’ve always suffered from depression and anxiety, but ever since my baby passed it’s been difficult to carry on. It was an unexpected pregnancy, but I was so happy and so hopeful and then it all ended in a blink of an eye. I just feel so empty and hopeless now, I want another baby , but it feels like I’m replacing my baby and It makes me upset because I wanted that baby. Every day I try to be happy, when I just want to crawl into bed and die, I miss my child.