Feeling like a burden 🫠

My husband and I are expecting our first baby in April. We’re excited. When it comes to being a dad he seems genuinely excited and looking forward to her arrival but in terms of being a husband, our relationship is pretty much nonexistent. The difference between now and August (around when I conceived) is polar opposites and it really starting to wear me thin. I’m full of anxiety about how I’ll be able to manage his lack of anything during postpartum. We don’t have sex anymore and used to have a great sex life, he said it’s because he feels put off by the baby being there and I said okay fair enough but he has stopped all affection. We don’t cuddle, kiss or anything anymore. I feel like I’m forcing him if I try to cuddle him so I just don’t bother anymore. I am a touchy person, I love to cuddle and he knows this so him being so distant is really upsetting for me. He wakes up and as soon as he’s on his feet he’s complaining about something, before he goes to sleep he’s also complaining. Either I’m taking up too much room, the window being open makes him cold, my empty bottle of water on the wise means I’m messy. It’s draining. I spoke to him about it and he at first said that I’m not affectionate either? But then spent two days giving me a peck and saying “look I am affectionate” over it being genuine like it used to be and no matter how much I do, he finds complaints. I’m riddle with anxiety over how postpartum will be. How I’ll manage all the emotions and a baby at the same time. He works quite late and usually we have the mornings together but he’s even started to spend them doing his own thing. Eating breakfast alone then leaving with a “see you later” without even looking at me. I’ve never felt so unwanted, unloved before and if I knew he would switch up so bad I really wouldn’t have ever got pregnant to begin with and this has all put me off having another child with him in the future and even preparing for our relationship to breakdown. He’s never been nonchalant, never made me feel unloved or cared for. Due to his working hours he’s missed all my appointments and scans and now I’m realising maybe he just doesn’t want to be there and it’s not really about work? I’ve mentioned it so many times now it is clear he either doesn’t care or doesn’t see an issue so he just thinks I’m complaining about nothing. I feel like I’m just getting in his way and forcing him to be around me and I’m contemplating just staying at my mums house for a few weeks. It’s really starting to bring me down and I know he will be indifferent about me being here or not. I am 31 weeks now, I don’t have the energy to fight to be seen by my own husband, I basically feel like a room mate/maid over a pregnant wife. I don’t have family in the city we live in, he is my main support and I am not supported at all 😞