I want to file for divorce because of my husband's drunkenness

I am 23 years old. I got married at the age of 20 for love and still love. Before the wedding, we were together for 2 years, everything was just amazing: and candy, and bouquets, and attention, well, etc. It seemed to me that this is the best man on earth and how lucky I was with him.

At the moment I'm in position, at 6 month. Before I became pregnant, I had to be treated for a long time and I had to get pregnant as soon as possible. A miracle was accomplished, and we were both happy.

But my husband began to drink. He drank before, like everyone else, and now can not even have an evening without at least one bottle of beer. It started before my pregnancy. I have talked with him on this topic many times, cursing, scandalous, making ultimatums, threatening to divorce, alas, nothing helps. He does not understand me, he says that I just carp, that there is nothing terrible in this. This continues every day, I now have a very sharp sense of smell, I just can not stand this peregar. I can not hug him at night, because from it terribly smells. And he also raves at the fact that it irritates me. He says that I'm bored with his reproaches.

How many tears I shed for this pregnancy, how many hysterics have already been - he does not care. And this is only a small part of what I'm nervous about. I do not know what to do. We have to go to extreme measures. I do not want my baby to see all this and think it's the norm. Advise something.