Hey Fluffy - it's very weird, isn't it? It feels a bit wrong, not how everything was planned, being a mum when you were expecting to still have a growing bump
We had only had one of the antenatal classes we had signed up to (never found out what was covered in the others....!). We had planned a few last meals out before there were three of us. I was still at work, and intended to be for another three weeks. We had been worried about him going overdue (!) and his birthday falling on a day that is very sad for DH's family, rather than there being such a large gap no-one would make the connection.
Lots and lots of things didn't feel "right" at first, and I can see now that in the early weeks I was going through the motions of looking after DS, even as everyone cooed about how well I was doing. It definitely took me a while to feel twinges of a bond with him.
There's a saying in the adoption world for adoptive parents with newly placed children: "Fake it until you make it". Ie go through the motions of being the loving attached parent even though you are looking after a stranger. I didn't know this back when I had DS, but that's essentially what I did and it worked for me.
Having said that, I wish that I had spoken to people at the time and told them how I was feeling. I just smiled and nodded when people said I seemed to be coping. I never spoke up and said that I felt like I had jumped into an alternative reality and that this wasn't the life I was planning. You don't have to let everyone know how you are feeling, but try to find one or two people you can confide in (a friend, your mum?)
And you absolutely don't need to think about Number 2 now. When I got the contraception talk from the doctor at my 6 week check I almost laughed at her. There was no way that sex was on the menu for some time, we were both too shell shocked and sleep deprived. 