A study analyzed decades of births and found that larger families showed a distinct tendency toward all girls or all boys, ...

A new study finds that the odds of having a boy or girl aren’t 50-50. Instead, birth sex is associated with maternal age, ...

A massive study of over 58,000 women shows that families may have their own subtle biological bias toward having boys or ...

We commonly think that sperm determines the sex of a child, depending on whether it carries an X or Y chromosome, but a study ...

Trisha Paytas announced on her Just Trish podcast July 22 that she and husband Moses Hacmon welcomed their third child ...