I should probably explain, I simplified things a bit to stop my original post from becoming an essay. Basically, the first either of us knew we were having a baby was when my DP went into labour. (Think Sonia on Eastenders Christmas special).
We were two under 25s less than 11 months into a relationship that wasn't going that well, and suddenly there was a baby in the middle of it. We talked about adoption in the first 24 hours, we talked at length about our future in those first 10 days or so.
DP was going to be the primary caretaker to start with, even if we stayed together. She was living with her parents and there was no room for me. I was living in a houseshare with 2 other people. It took us 4 months to get to a point where we could live together, and more importantly were sure we wanted to live together.
By the time we took DD to be registered at 2 weeks or whatever it was, DP had bonded with her. I hadn't really. I wasn't at the house all the time, and when I was, DP and her parents were on top of everything, had everything worked out, and I was trying to work out my relationship with my child whilst also feeling like I was intruding. I knew I wanted to be involved, knew I wanted this child, but she was a responsibility to me, she wasn't a person yet. I think to DP, giving her my last name was a way to try to prove that link, that bond