I have 3 DCs and I really struggled with the third (DS2). He was a very demnading baby and semed to cry constantly. I remember putting him in his bouncy chair and staring at him wishing that we had stuck with two.
I felt awful for thinking like that about my own child. I was on MN a lot talking to a really supportive group of people and that did help. I had a visit from my HV once a week and my mum lived nearby. Despite all of that support I remember feeling terribly alone and terribly sad.
When your experience of your baby is like this it is awful. I felt I was robbed of what was meant to be a joyeous time.
However, DS2 is now 3 and he is my little supersatr. he is still a much more difficult and demanding child than my other two, but I wouldn't change him for the world. He is funny and loving and those dark days seem light years ago.
You will get through this. Take one day at a time. Don't put too high expectations on yourself. New born babies are hard work and I didn't feel I got much back. Before you know it your baby will be smiling at you and slowly she will become more interactive.
I worried that DS2 would be affected by my earlier negative feelings towards him. I don't think he has. He loves me and spends as much time as he can with me and I think we have a great relationship.
I'll be thinking of you. Come back and chat on here when times get hard, don't keep it all inside yourself.