I felt the same with #3 until I hit the 30 wk mark and started going thru clothes, wiping down the baby rocker / cot etc.

I found the need to go and buy some special little outfits, just so Dd2 would have at least a few things that weren't hand me downs. I also bought a few personalized items with her name on it etc as I had everything I needed...

But I think shopping for the new baby increased my excitement and I quickly changed my outlook .