I'm really hurting right now

I don't want to make this to long, but I really want to die right now. Between my depression and other issues I don't know if I can take it anymore. I'm just so tired of getting up and having to go through the day. It's like everything is getting to me and I'm seriously afraid I'm going to hurt someone or myself. Honestly the only reason I'm trying is because I'm pregnant with my son and my 1 year old daughter is here and I don't want to do anything that will negatively affect them. I want to give up so badly, I feel like I've really tried enjoy my life but its just not working. I don't know what to do anymore..