Just a disclaimer, some of these books have bottle-feeding content which may or may not be how you want to portray life with a new baby. Also some books have references to hospitals or birthing centers, etc. and may be like what you’re planning or not. I haven’t read all these books myself, but the ones I like the best are starred and are also in my library for clients to borrow.
General books
- * Hello Baby, Lizzy Rockwell, ages 1-8
- * Baby on the Way, Dr. Sears, ages 1-8
- * What Baby Needs, Dr. Sears, ages 1-8
- * I watched My Brother Being Born, Book and DVD
- * My Brother Jimi Jazz, all ages
- * Waiting for the Sun, ages 1-8
- * Being Born, The Doula’s Role, all ages
- * We Have A Baby, Cathryn Falwell, ages 4-8
- * My New Baby, Annie Kubler, ages 1-5
- Usborne New Experiences The New Baby, Anne Civardi, ages 1-5
- The New Baby at Our House, Joanna Cole, ages 1-5
- The New Baby, Fred Rogers, ages 4-8
- What to Expect When the New Baby Comes Home, Heidi Murkoff, ages 4-8
- Sophie and the New Baby, Lawrence Anholt, ages 4-8
- Waiting for Baby, Annie Kubler, ages 1-5
- Kids Book to Welcome a New Baby, Barbara J Collman, ages 4-8
- Little Rabbit’s New Baby, Harry Horse, ages 4-8
- Froggy’s Baby Sister, Jonathan London, ages 4-8
- Hi New Baby!, Robie H. Harris, ages 4-8
- That New Animal, Emily Jenkins, ages 4-8
- That Night Before the New Baby, Natasha Wing, ages 4-8
- The Berenstain Bears New Baby, Stan and Jan Berenstain, ages 4-8
Big Sister
- I’m a Big Sister, Joanna Cole, ages 1-6
- I’m Going to be a Big Sister, Brenda Bercun, ages ages 1-5
- How to be a Baby…By Me, the Big Sister, Sally Lloyd-Jones, ages 4-8
- Big Sister Dora, Alison Inches, ages 4-8
- Best Ever Big Sister, Karen Katz, ages 1-5
- The New Baby, Mercer Mayer, ages 1-5
Big Brother
- I’m a Big Brother, Joanna Cole, ages 1-6
- I’m Going to be a Big Brother, Brenda Bercun, ages 1-5
- There’s a Brand-New Baby at Our House…And I’m the Big Brother!, Susan Ligon, ages 4-8
- I Used to be the Baby, Robin Ballard, ages 4-8
- Best-Ever Big Brother, Karen Katz, ages 1-5
- Dear Baby: Letters from Your Big Brother, Sarah Sullivan, ages 4-8
Mandala Doula - Gentle Birth Services 
I love “Hello Baby” by Jenni Overend. It used to be titled “Welcome Baby, With Love.” This is the newer UK version. It is a picture book showing a homebirth of a little boy, including the whole family, midwife, and the mom’s sister.
That’s really tinkihng out of the box. Thanks!