Am I wrong? (Long post sorry)

I am 38+2weeks pregnant with Baby #2 and maybe I’m being an over emotional b*tch. My hubby is usually amazing. He is a great father, has been providing for us single handedly for the last 2 months as I try to figure out my maternity leave payments (we are in Canada), he is a neat freak so he helps clean around the house and takes care of the yard and pool maintenance. I’m lucky really. BUT for the last few months his drinking has increased. Before he would have a couple beers here and there and be able to stop but it slowly turned to 4,5,6+ and smoking weed every night (it’s legal here and it doesn’t really bother me as long as he doesn’t do it when he’s alone with our son). So two days ago, I brought it up to him that I wanted him to cut back because I can literally go into labour any day and I need him there (I have no family here and no friends that I would want to labour with me). So he was okay with it during the day but then night rolled around and he had to go to a viewing for an old friend who passed away suddenly last week. So he drank two beers before he left, had “a couple” there with his old friends and came home and drank more. He was plastered. I didn’t say anything because I figured it was a difficult experience and he needed to let loose. The next evening he started drinking heavily again and announced that he would be going to a “celebration of life” party on Friday and suddenly he’s showing me pics of his “super hot blonde Barbie” (his words) ex girlfriend and him with this friend from back in the day and saying she will be there (we’ve been together 6 years and I’ve never heard of this girl) now she’s calling and texting him etc. (Id love to say I’m confident enough to not be jealous but I’m 9 months pregnant and feel absolutely disgusting. Plus we haven’t had sex in two months so I’m feeling SUPER insecure right now 🤦🏻‍♀️😭) and he’s telling me that he’s going and saying he’s not bringing drinks but can’t promise he wont get “smashed”. I got really upset and told him that, though I’m totally okay with him going I really don’t want him drinking or staying out super late because, again, I can go into labour at any moment. He was pissed and told me I was making a big deal out of nothing and that he wanted to go and party with his friends that he’s known for 30 years and I was being “that wife”. Not only am I upset about the drinking but im also upset that we are supposed to be social distancing (gatherings of max 10 people here) and he’s going to a party! I don’t know what happened. I suddenly feel like I’m in this alone and I’m terrified.