Has anybody else felt this way?

So this is my first pregnancy. I’ve ALWAYS wanted to be a mom & tried for this baby, which wasn’t the easiest cause I was diagnosed with PCOS in the past. I wanted a girl so bad & that’s what I’m having so I’m very happy about her. It’s just that now I’m 7 months in & I feel like I don’t really feel connected to my baby. I love when I feel her kick cause it lets me know she’s ok in there but I don’t really talk to her the way I thought I would, sometimes I almost forget she’s there which is so weird cause I have a huge belly. My pregnancy has been nothing like I imagined, I’m super stressed out & disappointed in my child’s father who I thought would be there for me way more, cause we did plan this baby after all. I feel sad & lonely all the time, so idk if that’s the reason I feel so disconnected from her but idk I just do. & I feel guilty when I’m sad or mad or anything along those lines cause I don’t want her to feel that I’m passing that energy to her. I love her, I plan for her to have the best of everything, I shop for her all the time, I’m excited to meet her, but I just feel so guilty because I feel like she deserves a mom who doesn’t feel this odd disconnect that I do. I’m not even sure if I’m really explaining it right but I just wanted to know if anybody has ever felt this. It’s like all this stuff happening during my pregnancy makes me feel like I’m passing her the negative energy. I’m scared to tell my doctor cause I don’t want them to try and take her away from me or medicate me or anything like that. I just don’t understand what’s happening to me smh.