Should I Stay Or Should I Go? (Advice me)

Should I stay for the kids or should I go?

Jenny’s Question: 

We’ve been married for almost 9 years and have a 4 year old son. We have had a rocky marriage, splitting up and getting back together constantly. We split up about three years ago, and he went in rehab for drugs and alcohol (which was the reason we split). After he got out, he told me he was a new and changed person and wanted to try again. I took it slow and eventually we got back together again.

For almost 9 months things were GREAT until he started drinking again. Prior to this, I had told him that it would be over if he ever touched drugs again, so I stuck to that. After a day of feeling horrible and discovering I was pregnant I decided to tell him that I would take him back on the condition that he never touch the stuff (alcohol or drugs) again.

Things were great for a couple of days and now we just constantly fight. Do I stay because of the kids? Do I leave because of the kids? I’m so confused and I don’t know what to do, please help….