Thanks for the resources! JB - we don't have any problem with the anatomy issues, as DD started asking questions about where babies come from at a young 3, and those questions led to more questions ("But mom, how does the baby actually get IN the uterus?"), which eventually led us to explain the whole story. As a science teacher, I easily (and without embarrassment) answered all of her questions, until she threw me for a loop after a basic explanation of how the baby got IN there - "Mom, did you LIKE it when Daddy did that??" Admittedly, I was caught a little off-guard on that one... :-)

Barbara - we'll check out the book on Amazon!