Mark off time on your calendar for baking bread,practicing piano,or whatever stimulates your creative juices. Creative time is just like any time; if it's not scheduled, something else will probably crowd it out.
I love to bake bread and do it every Sunday. I have this beautiful piano sitting in my living room and I try to play it 1-2 times a week. Otherwise my fingers get rust and the music sounds awful. The other thing that I love to do is craft be it needlepoint on fine linen, scrap booking, or anything that looks fun I try it. I learned how to knit over Thanksgiving. It is really fun and very relaxing.
The other thing I am trying to do is Sudoku and crossword puzzles a little bit everyday to keep my mind sharp. I try to read also. I am now reading Blue Shoe by Anne LaMott.
Try to enjoy your life while we wait for our children. We must do fun things for ourselves and cherish these moments. Once our children arrive there will be less time to do all these things.