$ 0 0 IN 2007 Cathy McMorris Rodgers, a 37-year-old Republican congresswoman from Washington state, became the first woman in over a decade to give birth in office. In 2010 she had a second child, and in 2013 a third. That made her the first, and so far only, woman to give birth more than once while in Congress. Yet although her experience is rare among legislators, new data on births show that she is, in fact, rather typical of one category of American women. While the overall birth rate keeps declining, well-educated women seem to be having more children, not fewer.