Don't worry about it hun. I remember with bub no 3, I felt a bit ambivalent about it all when I first found out, even though we had been trying for another baby. I just never felt that excited about it. I don't know why, even now I don't really know why I felt like that because I was happy and excited with all the others. But of course we had a beautiful baby girl who is now 2 and such a joy to have in our lives. You will get there - just give yourself time. And don't feel like you have to tell anyone until you feel ready.