Depression ?

So I’ve been on and off sad and somewhat depressed this whole pregnancy it seem like it had gotten worse in the 2nd trimester and in the beginning of the 3rd. I’ve been having feelings of guilt, being overwhelmed, over thinking , and just plain ole sad . This is my first daughter and as much as I was happy to find out she was a girl . A part of me felt sad and guilty for bringing her into this world by a different guy. My other 2 sons have the same dad but this child has a different father . Sometimes he’s been there for me during this pregnancy but most of the time he hasn’t and that really made me depressed I would cry alone at night. And I don’t ever want to regret my daughter and who I had her by but it just makes me sad to feel like I’m not going to love her when she gets here I’m scared I’ll have postpartum depression and not want to hold or look at her or breastfeed her as much as I wanted her 😭😩 all these things are running through my mind and I’m scared 😔😔 does anybody else feel like this ?