Mad Men Moms

Mom to: An unnamed baby boy made only a brief appearance on the show in season 5

Who's the Daddy? Peggy's colleague, account manager Pete Campbell

Parental Profile: At the end of season one, Peggy visits the hospital with severe stomach pains, and is shocked to learn that she's actually in labor. With the help of her mother and sister, she conceals the news of the birth from her co-workers, and instead blames her absence on a bout of tuberculosis. She gives the baby away and doesn't share the news with Pete until much later. Throughout the next few seasons, it's made evident that the incident still haunts Peggy. In season 6, she's shown flourishing at her new firm, with a newfound level of confidence and authority.

Source: AMC