My favourite pregnancy book is "Your Pregnancy Bible" by Anne Deans (though it has contributions by all sorts of health professionals). It has week-to-week descriptions of your developing baby with pictures, and has a fold-out page that gives a brief idea of your pregnant body each week (including pictures of a naked pregnant lady so you can see how big you'll be at ___ X date. It also has info about how to look after your body while pregnant, your emotions and relationships when pregnant, your body after bub, and just generally everything. It doesn't have a huge amount on birthing options though it does have a section on labour. I'd definately recommend getting a seperate book on labour.