Cover of "Motherhood, Rescheduled."
This weekend is Mother's Day, a time to celebrate moms and all the hard work they do.
Mother's Day has been an official American holiday since 1914, but when it comes to motherhood, much has changed over the past century. In recent years, women have been able to postpone parenthood to pursue careers or to find the perfect mate thanks to advances in modern medicine.
Journalist Sarah Elizabeth Richards writes about the effects of those advances in her new book "Motherhood, Rescheduled: The New Frontier of Egg Freezing and the Women Who Tried It."