Idk if he is making up excuses or what. I just know, I can’t do it for much longer.
He is making up excuses. Don't move in with him Lauren, it will get worse and you'll regret it. Please please do not get pregnant. Get him out of your mother's house too, but without you. Let him get sober on his own, if he wants to, and nothing you wrote indicates he wants to. Read the thousands of stories here about living with an actively drinking partner and spare yourself.
It’s my job to support him during hard times and not enable him.
What do you mean by support him? He does not want support to stop drinking.