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 new study challenges the idea that a baby's sex is pure chance. Harvard researchers studied pregnancies among US nurses.

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

If you’re expecting twins right now, things are probably tough enough already. Hello, doubling up on all the baby gear. The last thing you need is one more double-struggle; but, alas, coming up with ...

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

A baby’s sex may not be up to mere chance. A study published on Saturday NZT in the journal Science Advances describes the odds of having a boy or girl as flipping a weighted coin, unique to each ...

Trisha Paytas, who announced the birth of her son Aquaman Moses Paytas-Hacmon July 22, explained why she chose to have her ...

Check out these unique and cool boy-girl twin names from some of our favorite celebrities — and even the iconic Egyptian ruler, Cleopatra. Holly Robinson-Peete: Ryan (daughter) and Rodney Jr.

‘Boys leave, girls stay’ is a popular saying among the older generation. It’s a notion deeply drilled into us that women take ...