Future Leech of a husband?

I'm torn between two worlds and I try see the best in my fiance (who is a rehabilitated drug user). But as time goes by I am seeing this "bright fantastic world" that I am so desperately trying to achieve go up in flames. We have been dating for a year and 4 months and we have a 6 month old baby. The home life is wonderful, he is a fantastic gentleman and loves his daughter, but I have a job and he doesn't. This has been an issue from the time we found out that we were going to have a baby. He worked at a bar as a bartender bringing drips and drabs while my salary paid for everything. My dad landed up giving him a job just before the baby was born (6 months ago) which he messed up but being accused of stealing and was fired. He still to this day says he never, but now I am beginning to doubt it. Two weeks later he got another job, which was heaven sent. Then two weeks into getting a good job he had a drinking binge night took drugs and disappeared for 17 hours leaving me alone at home with no phone or money to find him. Obviously I kicked him out took my car back (which he used for work etc) got fired from his job and begged me to take him back saying that he learnt from his mistake and that the drugs gave him a scare because it affected him so badly. I believed all this and now I am sitting knowing that I messed up by taking this "loser" back. It's been a month that he's been sitting at home while I send his CV out and he goes for the interviews. We are struggling and I know that my stress levels are sky rocketing and this will in the end affect my baby. I am i supposed to stand by the father of my baby while he goes through a "Job Slum" or he being a money leech while i work and sell my belongings to make ends meet? Please help?