The fact that there's finally a rom-com about abortion is wonderful. "Obvious Child", starring comedian Jenny Slate, depicts a world where an abortion is more like a trip to the dentist than a life-ruiner. For many upper-middle class women such as me, the undramatic portrayal is a welcome reality. Our lives are much improved since motherhood has morphed from a straitjacket into a spandex that accommodates 21st-century ambitions. But not all groups of women have benefited from more flexible notions of maternity.