Venting & needing advice

I’m a mommy of 2 right now, going to be a mommy of 3 Dec 1st. I have a 3 year old from a previous 3-5 year relationship, we both moved on. The person Ive been with for about 2 years, we have a 11 month old & I’m currently 29 weeks pregnant. We’ve been engaged on & off, family has been way too involved in our relationship & because of that, it’s torn us apart a lot. We kind of had a falling out in April, end of May & after talking everything out he’s like “Let’s get married in August” basically a security blanket, kind of like comfort since it’s what I really want. I’ve been working so hard on the things that break us & I’ve improved so much especially with my communication skills. August comes & Im ready & excited & just happy. He goes on to say “We should wait.... How about October?” (our 2 year anniversary mark) of course I get my hopes up thinking it’s real this time. Then when I express how I’m feeling about it he brings up getting married again soon & of course it still doesn’t happen. Then he says how he doesn’t have money to pay for the marriage license & other fees but he knows I’d be happy to pay for it. After all of that, he’s constantly telling me what I need to work on, what I’m doing wrong, saying he needs to be harder on me about MY money just bc I got a car note (family problems with his mom so i had to get myself a car), so I work even harder on myself & everything he’s telling me just bc I want a better relationship with him but he’s not even doing the same. We got into a screaming match after my ob appointment about how I’m fucked up & disrespectful for not wanting to continue a conversation that was getting out of hand while we were in the waiting room. Apparently I kept cutting him off but the thing is he wouldn’t let me explain why I was saying he needs to be ready when the baby comes bc I’m already diagnosed with depression & a panic disorder which stems from anxiety so I want him to be with me at all times in the hospital since ppd gets really really bad for me. He’s my comfort zone & that’s what I was really trying to get at... so the argument leads to me being extremely fed up. I’ve worked so hard just to get us to this point & we still aren’t married. (He has been wanting to marry me ever since we got together so please don’t assume I’m the one that’s crazy about marriage, after hearing it for so long of course I’m gonna want the same) I at least wanted to be married before our daughter gets here since this is our second child together. I don’t want to keep having kids with someone & we aren’t married. I’ve expressed all of that to him & now it’s “just wait til i’m done with my community service & when i have a job we can get married.” He was with friends at the wrong place & wrong time & he took the blame for everything so he’s on informal probation & has about 5 days of cs left. He’s never had a job the whole time we’ve together, I’ve always had a job while we’ve been together & it’s also always “i’m gonna take care of you guys, i’ll get a job don’t worry” but have failed to do so... I wanted to marry this man even though he has nothing to offer me. But I think the love is just fading at this point. When I’m not around him I don’t care if he doesn’t speak to me & he barely messaged me or calls me anyways.. but when we’re around each other I’m some what happy but also, just not feeling in love. The last argument we had really got to me & ever since then I haven’t been feeling like it’s worth it anymore. I’ve given up so much for him & have done so much for him that I just kind of want to be single & just worry about my kids. I’m on county assistance (I have a job as well) bc of my first child’s father not being involved & also because the guy i’m with now hasn’t provided a thing for our child even while i was pregnant & still hasn’t til this day & hasn’t bought a thing for our little one on the way either.. Idk I love him so much & I just don’t wanna move on but I think it’s just time to let go. (He has put his hands on me, he’s made me out to be a bad person, his ex has been involved a couple of times)