While it might seem like Dad’s biological job is done at conception, science shows us that a partner’s pregnancy and the birth of a child cause major biological changes for fathers, too.

"Infertility is looked at as a female issue. Even doctors—even our OBGYN—instantly put me on fertility medication without ever saying, Hey, you do have PCOS, and there’s a good chance that’s causing you not to get pregnant, but let’s get your husband tested too. This is not just a women’s thing."