single moms

I want just some words please. I decided just within the last 2 days that it's time for me and my childs father to split. He is an alcoholic, he is a gambling addict, he is really immature with money, lies to me everyday, ignores us, didn't come home or see his daughter for 5 days so he could drink at a friends....theres just so much. On top of racking up $14k in debt for nothing, just frivolous spending. Anyway, so I want out. I'm super nervous about the custody aspect. I'm 30 weeks pregnant and we have a 19 month old. I'm at the point where I feel like IM giving up.... we both grew up with together parents who are still married and here we are ending it before our daughters 2nd birthday and before our new little one is even born.

Is this a natural part of the process, this guilt I'm feeling.

Do I give it one more chance? He is saying he'll change but we've all heard that before. Its an 8 year relationship, we're not married. Alcohol has always been isssue. I'm so scared and I never thought i'd become a single mom.