Emotionally unfulfilled

It’s been a year and a half with my partner things were good the first year but I always had doubts about him in the back of my brain. I’m 28 weeks pregnant and I’m not sure if my hormones are making it out to be more than it really is but I’m just feeling unloved and unfulfilled. I feel like the only thing we connect on is sex and our humor. I used to watch him sleep thinking he could never do wrong even when he was doing me so wrong. I used to think I’d never fall out of love with him but as I look at him sleep tonight I feel so disassociated and distant from him. No matter how much I give I can never get more than half that back from him. I feel so alone like we aren’t even a couple anymore even though we live together and are having a daughter😢 what do I do. I’ve tried telling him how I feel and all he has to say is that I’m wrong that we do have something between us. I feel guilty thinking we don’t but he has been pushing me away this whole relationship since we got comfortable together. I feel like I’m trying so hard for nothing because nothing ever changes