Rant( no judgement please)

Im sorry guys but I really need to vent. My boyfriend and I have been together for about 5 months. He's never had a high sex drive since day one but he mainly only has sex with me after days of me complaining about it or if he's really drunk than at that point he doesnt remember it... idk what to do about it:$ it makes me feel bad but I know that he's just not into it as much as me... he drinks a lot, like probably spends at least 200-400 dollars a month if not more on beer and we had a date night tonight and I spent the last 45 minutes of the movie making sure he stayed awake because when he's drunk and falls asleep he gets rude and its only when he gets real drunk and than well he doesnt really remember it... we aren't safe other than me being on birth control.... he doesnt pull out and I am on my sugar pills rn and we had sex tonight. Im scared to see if I get pregnant by him what will happen because I grew up with an alcoholic father and I refuse to ever put a child through that like I did....I have fallen in love with him and its hard because we have so much fun and we get along well he just drinks so much and thats the only thing between us that don't work for us... idk what to do guys:( sorry I just need to vent and have no one to talk to