Researchers believe that women stay away from male relatives when they are most fertile for evolutionary reasons.
IZA World of Labor - Female education and its impact on fertility
Male Age and Fertility
Do You Need to Stop Drinking When Trying to Conceive?
I slept with my half-brother': Woman's horror story reflects loosely regulated nature of US fertility industry
IVF revolutionized fertility. Will these new methods do the same?
Fertility Diet: What to Eat When Trying to Get Pregnant
Risks for Men Becoming Fathers After 50
The Comedy, and the Horror, of the Infertility Plot - The New York Times
Ovulation calculator - Flo Health
Can You Get Pregnant Right Before Your Period? Chart, Test, More
3 Ways to Use a Fertility Calendar - wikiHow
How much can we control our own fertility?
When is a Woman Most Fertile? - Medimise
Why have four children when you could have seven? Family planning