Relationship advice please??

Lately I've been feeling really down, close to being depressed and all for good reasons. I feel like ever since I got pregnant ( Not my baby's fault at all)  nobody wants to know  me or nobody has the time for me anymore, especially my fiancé. I feel like I'm constantly begging for attention now, he doesn't seem romantically interested as much anymore and he's never off his phone. I've spoke to him about this and he said that he loves me more than anything and that it hurts him that I feel this way, but I'm obviously feeling this way for a reason! I'm 26 weeks pregnant and just feel like he's pushing me away, I've already told him if he doesn't want to be with me to just say and I'll go.. as much as I'd be hurt at least I'd know and be able to move on with my life. I don't know whether it's my hormones or if I am actually depressed. I just feel so alone and it hurts like hell😔 I feel so guilty for feeling so down because I should be at my happiest for my baby boy but I just can't help the way I'm feeling😭