Writing in "On Our Own's" prologue, Melissa described how as she entered her 40s she was considering unmarried motherhood as her path toward creating a family. Thus, exploring this topic was rooted not only in her professional life as a journalist covering children and family issues for Time magazine, but also as a single woman who felt she had a lot to offer a child, wanted to raise one and did not see prospects for marriage at that time in her life. In her book, she writes about her own anxieties and fears about going it alone with motherhood along with the stories of other single women she interviews.
"Unmarried mothers are people about whom much is said and concluded, but from whom very little is heard," Melissa wrote. "Too often, amid the din of public ridicule and rage, these women's voices are lost, pushed so deep into the background of discussions as to fade away. ... In thinking about this new way of creating a family I sought out other women to talk with whose life circumstances had brought them to similar junctures of contemplation and action. Why were they and I willing to set out along this path to unmarried motherhood, a path that generations of women before us rarely headed down? And where was this path leading us and the children we might have?"