Feeling depressed.... Advice?

My unborn baby's father has a drinking problem..... He is 42 it's not like we are young adults! But since becoming pregnant it seems like it's getting worse... He is at the bar several times a week... A couple weeks ago I had to go get him and the next morning he didn't know where he was or how he got there.... He has said some terrible terrible things to be drunk... Then always says That he is going to stay out of the bar and it's not even a week until he is back there..... I moved out due to this problem... And I know today he got off work at was at the bar by 6. By 8 pm he stopped responding to me...... What am I suppose to think is going on...... Cheating, dead, in jail, blacked out somewhere.... I just don't know what to do.... I have been trying for months and I'm just at a loss of what's next...... At this rate I have no doubt he will be at the bar when I give birth.... This little one was a shock.. His youngest is almost 18 and I was on preventives but was later told that due to ibs the pill wouldn't have been good for me....