Selective abortion is very risky and not worht it if you are going through fertility treatments to have kids. Most women who are have been trying to get pregnant for at least a year or 2 unsuccessfully, often longer. If you were trying so hard for something would you really want to put ALL your children at risk just to have less? A lot of the time when they do this, all the fetuses die. Also, if too many babies are made, lots of time natural selection takes over and one or some die anyway on their own. With women who are ahving trouble already, i dont see why they would put themselves at further risk to never being able to have kids again...many women who abort aren't able to have kids later.
