Bf drinking problem

Hi everyone I honestly need advice.

My partner & I started our relationship “party” mode we drank so much and just got lost in the “fun. I mean we would drink weekdays AND weekends… After a year and a half I got over it, I was becoming depressed with also weight gain. I stopped drinking weekdays and only weekends. Over time calmed down on that too. The last three months when my bf drinks it’s always an argument because he acts like an ass just to apologize next day and do it following weekend.. I just found out I’m pregnant (surprise) and first weekend we found out he got drunk and started arguing with me. I told him I won’t tolerate this when I’m pregnant he again says he will work on it. Now he hasn’t got that drunk since (3 weeks ago) but he’s still drinking ex. This past weekend (Friday- Sunday), Monday, (yesterday) Thursday & most likely going to start this weekend. I have no idea what to do, I don’t enjoy this luckily I wanted to stop he’s struggling. I need help.. how can I help him?

I brought this up today and he hit me with “look I’m working on it wether you acknowledge it or not, cut me some slack” all he’s doing it spreading out the drinks now so he doesn’t get that intoxicated

We agreed two months ago baby steps no drinking weekdays because the kids see it, he tried for maybe a week and is back to drinking every other day or so..