Essentially today, we have many different natural ways in which to highly increase the chance of either a boy or a girl, without having any doctor interference. how to have a baby girl There are tons of sites like this, as well as real medical information that can help you out. Personally my mom did many of these things herself, to ensure she had first a son, and then a daughter, whether it was luck or because of her obsessive planning her dream family came true. Other then this the book itself is set in our future, we dont know if a simple pill could be taken that would reduce the male donor from producing female or male gender-ed offspring, or a pill that would allow the female egg to only accept male or female gender-ed donor material.