nayrt but I can think of plenty of mainstream shows with women choosing not to have kids. Sex and the City comes to mind - two of them chose to have kids, the other two didn't. The oldest one (sorry forgetting names) was very active in her opinion about never wanting kids. I believe the main woman (shit I'm drunk, can't even remember her name) went back and forth on it, and in the end, was with a partner who didn't want any and decided she didn't want any, too.