What should I do?

My fiancé was a recovering alcoholic. Last week I found out I was pregnant, and within a few days he started drinking again. I haven’t seen him in almost a week because of it. Originally we had planned to keep the baby, but once he started drinking I decided I’d have to have an abortion because I’m not stable enough to support myself and a kid without any help. We talked it out a few times and he said he’d do what he needed to to stay sober so we could have the baby and coparent.

Tonight, I agreed to get dinner with him, and he was drunk when I picked him up. I don’t know what to do