I cannot recommend The Complete Organic Pregnancy enough to anyone who is new to the organic/natural lifestyle. Deirdre Dolan and Alexandra Zissu cover in depth everything from beauty products to furniture to food. It covers from the "preparing for pregnancy stage" to after the baby is born, but I don't just recommend it to pregnant or trying-to-become-pregnant women. It is the ultimate resource for anyone beginning to pursue the organic life (you might warn your husband first, though, if you're reading it and not pregnant. ;) ).
A little word of warning though: if you are offended by cursing, there are a few not-so-nice words in some of the diary entries (which are included as side stories).
I love this book, and I have read it multiple times to get ideas of what to eliminate next from my chemical-laden life. I highly recommend it.