I found the transition from 0 to 1 child very difficult. Probably because I was 30 when I had DS1 and I was use to having my free time to do what I wanted when I wanted and to get as much sleep as I wanted. It took me 2 years to adjust to the point that I wanted another baby. With DS2 it was a piece of cake!! He was such a good baby and I feel like I got to enjoy being a Mom and just loved having him. I am hoping that it will be the same way with this baby and that I don't find 3 to be crazy. I think it will be good that DS2 is now 4 years old... he has become more independent lately.
As far as gender dreams I had only a handful of dreams but my most vivid one that I can still remember in great clarity was that it was a girl:)