While widespread availability of fertility treatments means that infertile couples and gay/lesbian parents can easily have kids, one of the biggest downsides of artificial reproductive therapy (ART) is that a large number of risks are unknown. We have some data that kids born through in vitro fertilization may have health complications, but it is still not clear what happens over a period of decades when a woman takes hormonal drugs like Clomid. Not that we know everything now, but research completed by professor Louise Stewart at the University of Western Australia has found women who go through an IVF procedure are more likely to develop breast cancer later on.
It is to be pointed out that this applies to only younger women who chose IVF and their cancer showed up when they were older. Surprisingly, this risk is not seen among women over 40 who got pregnant through IVF. It appears that the hormones cause changes in the body over a long period of time and that is why it affects younger women more.
The conclusion here is that if you do not want to die prematurely from cancer, it is best to adopt or simply accept that the way not everyone is going to be an astronaut or supermodel not every woman is going to be a mom.