When in the month are women and men most fertile? » British Fertility Society

Ovulation calculator: When will I ovulate? - Good To

Fertility Education posters - Fertility Europe

What Age Are Women Most Fertile?, Fertility by Age

West London Gynaecology

Can you get pregnant on your period? - Flo

Black women are more likely to experience infertility than white women. They're less likely to get help, too, Race

When Is a Woman Most Fertile to Get Pregnant? - GoodRx

Menstruation - Wikipedia

Infertility in history - BioCouriers

Female fertility: development of the female reproductive system

Count Down, Book by Shanna H. Swan, Stacey Colino, Official Publisher Page

How Long Can You Wait to Have a Baby? - The Atlantic