Boyfriend hangs out with friends every single day?

My bf hangouts with his friends everyday if he could but to be accurate hes with them every other day or whenever we don't see each other. We probably see each other twice a week so he'll see them 4-5 out of the other days, even when I am with him his phone will ring or buzz and i already know its someone looking for him. They don't do much but hang out and smoke at least that's what I'm told but tonight I really had it, he went out late around 10 and I called asking him where was he, he said he was around lake shore michigan smoking and cruising and that he will call me back in a couple of hours. I got upset and told him what does he mean in a couple of hours then I asked him if he can go home because im already upset that this is the 4th time this week that he's out but even more that I did my best to not care and let it pass but it shouldn't take so long for a quick smoke. Of course he was his friends in the car and didn't want to talk so he said no and hung up and its been already 2 hours and haven't heard from him. He thinks he does nothing wrong but I can't imagine things getting better once the baby is born in 2&3 weeks. Hes also currently unemployed even though he feels like that isn't a reason why he should just stay home and I live "far" so he will be sort on gas (I live 25 min away. Am I exaggerating?? His friends have seen me pist and stress throughout my whole pregnancy and iv told him they don't care or have anything to lose at the end of the day, they don't have a family or wives or a gf to think about but I'm sure if the tables were turn they wouldn't bother with him.

We also had a break a month ago because of this issue and many more. When we got back together of course he tried being a lil nicer and caring like taking me to my appointments or finally offering me a ride to work! but apart from that hes still doing the same, smoking everyday, hanging out with the wrong type of friends, never being home, no job or money saved then im over here thinking there is a chance his friends are hanging out with other girls I don't know about, etc. The stress isn't worth it, he knows my family hates him and hes only giving me reasons to believe they were right about him. He's had 8 months to really step up and im devasted to where I am in life right now. I shouldn't care if he's with another girl because he doesn't have shit to offer or has really been there for me emotionally thoughout this pregnancy but it really makes me mad and sad! But again he sees nothing wrong in what he does or maybe he does and tries to manipulate me...? I honestly try to hard to make things work, I don't even bother anymore when he tells me he's going out to his friends because then he makes me feel bad about him staying home and bored feeling trapped in there. Thoughts??