A lot of what of has been written resonates with me. Dd is now 9. We didn't have anymore and, with hindsight, I think it was down to my pnd. I was terrified, felt absolutley isolated (I wasn't), dreaded being alone with her and thought it was the most single, biggest mistake I had ever made.
I made plans in my head to pass her to a friend who was already a mother and various other, seemingly sensible at the time, ideas to just get rid of this baby.
Eventually I went to the doctors, who prescribed me a very low dose of Valium for a short period. It did nothing. I soldiered on and at some point, I must have got marginally better. However, it wasn't until some time later and for another reason, I was prescribed AD's. They really, really helped. I was then able to see for myself that I had had pnd and felt quite angry that, because I wasn't diagnosed, I blew the opportunity of having another child.
There's nothing that can be done now, but I will say that our daughter is the most marvellous, precious, treasured, delightfully charming and loved human being. I can't believe how lucky we are to have her.
I am willing you to find the will power to get over this; it will pass.