Help with possible postpartum depression

I won't go into all the details here, but I think I may have postpartum depression and I can't seem to get any help here in Copenhagen (I live here, but I'm not from here originally).

I'm 6 weeks postpartum and I do not love my baby. I don't feel like a mother at all. I feel zero connection to her, fe nothing when she cries, feel so devastated to be a mother (I really wanted her before, and went through years of infertility and IVF to conceive her), have researched getting sterilised as I really cannot do this ever again. I haven't felt a single moment of joy since she was born. I look forward to nothing at all. I can feel myself falling deeper and deeper into a dark place. I messaged work about going back from maternity leave early as I hate maternity leave so much, but they hired a maternity cover for a year already.

I've spoken to my partner and asked if he'd prefer I leave our home and he raise the child himself, so she won't have to deal with such a terrible mother when she's old enough to really know me. He didn't want to engage with how I feel, and just said I'm a good mother and I'll feel fine when baby is older.

I realised that these feelings might possibily be PPD, but whenever I brought it up, I've been told I'm fine. I mentioned it at the hospital after I didn't want to hold baby when she was born (they noted possible PPD on my file, but no one ever spoke to me about it) at the baby's 5 week check-up (told to wait until the 8 week appointment) and to the sundhedsplejerske, but she told me to to focus on other things - she's not the emotional type at all.

The only way I can see to get out of this is either to leave one day when my partner is out, and drop baby at his parents, or to think about myself not existing anymore, I'd be happy to simply not wake up ever again. I'm so sad, I used to love my life and my relationship was amazing, and now I can't remember what happiness feels like. I fucked up so badly having a baby. I wish I could go back in time desperately.

Does anyone know what I can do? I'm finding it so hard to navigate the system. I know I sound like a heartless evil woman, and I know my baby deserves so much better. No one in my mother group feels like this, so I'm totally isolated.

Edit: I would NEVER hurt her. I am capable of taking care of her and she is getting all her needs met, even if I feel dead inside every moment of it.