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What to Expect

The World's Bestselling Pregnancy and Parenting Series

What to Expect© When You’re Expecting was conceived during Heidi Murkoff’s first pregnancy, when she discovered that most guides only added to her questions and worries. Five editions and 19 million copies later, it has become the most widely read pregnancy guide in America (as reported by USA Today).

Heidi has gone on to write seven more books in the bestselling What to Expect series. She’s also cofounded the What to Expect® Foundation, a nonprofit organization dedicated to helping low-income families expect healthy pregnancies;  joined forces with the USO in Special Delivery, which supports expectant military moms; and  partnered with 1,000 Days, a global organization that promotes early childhood nutrition. Her daughter, Emma, and her grandson, Lennox, appear on the covers of the most recent edition of What to Expect When You’re Expecting. You can visit her online at