I actually really liked "The Pregnancy Book" and "The Birth Book" by. Dr. William Sears when I was pregnant with both of my daughters.
When I first got pregnant, the only book I could find at Wal-Mart on the subject was that horrible "What To Expect..." book, and it was so negative when it came to natural birth and breastfeeding. After I read the whole thing through and giving it to a used book store for credit, I picked up a copy of the Dr. Sears books and LOVED them! They were so positive sounding and had lots of information on natural birth.
The Pregnancy Book even had sections that you could fill it regarding your weight, emotions, what you were eating, ect. for each month.
If she is also wanting a breastfeeding book, I really liked 3 books: "So That's What They're For!: Breastfeeding Basics", "The Complete Idiots Guide to Breastfeeding", and "The Nursing Mother's Companion". All 3 had excellent sections for new mom's and on different breast pumps (the Idiots guide even had photos of several pumps and bottles that were good for pumping and feeding).
Jessie
(single mommy to Emma, 4 years and Angela, 2 1/2 years)