Expert advice for the pregnant woman who wants to return to her job after the baby arrives. Wheatley is Rosabeth Moss Kanter's partner in a Cambridge (Mass.) management consulting firm; Hirsch is director of career planning at Brandeis U. From the outset, they urge you to plan ""how you will combine work, pregnancy, and motherhood"" and to carefully assess ""the real-life implications for your career."" They also point out that, under existing laws, pregnancy is considered a disability, no different from any other medical disability. The strategies they suggest will work best for women whose experience and/or skills make their potential loss of real concern to their companies (though others can benefit from the know-how). Re negotiating, they provide instructions for dealing with spouses, co-workers, and superiors, and for addressing perceived conflicts-of-interest from the other party's point of view. More case histories would have been helpful as illustration--but the authors have a pleasant, relaxed manner, as well as a clear-eyed grasp of the problems.