Yes, I keep thinking of this time as "wasted." I was angry the other day and told my DH I wished I never got pregnant because it wasted three+ months when we could have been getting pregnant with a sticky baby. That seems like an awful thing to say I know.
Here is the link to the coloring book I bought on Amazon. If you look at the related products you'll see there are quite a few to choose from depending on your interests/style. I have really enjoyed it so far :)