abortion in one hour, i dont want if baby will be okay..HELP.

I binge drank last week, at 7 weeks pregnant (half a bottle of vodka), I stopped drinking at 4 weeks 4 days because I was going to keep it, then because I had initially decided with my boyfriend I was going to have an abortion last week (I only drank that one night since then) I have felt awful ever since and like this abortion is not somthing I want, now we are suppose to leave in one hour and I don't want to do it.
If my baby will more than likely be okay, I won't go through with it. I need some opinions pretty quickly.. please ladies opinions even if they're nasty and mean. 
(And if I choose not to do it how do I tell him without him being angry)
UPDATE: I did not go.