Final Days of just one

Kate
As I was sitting in the nursery putting away the clothes for baby boy #2 I was thinking about how my oldest son (20 months) used to wear most of those clothes and how fast he is growing. Then I see his sweet little face fast asleep on the monitor and realized that these are the last moments of it just being him and I home (scheduled c section in 13 days). Which don't get me wrong I am beyond excited for another baby but thinking about it all got me so emotional. 
For those of you who have more then 1 kid what was the transition like from one to two?