And what are the chances of identical twins? Approximately every three or four births out of every 1,000 are identical twins. So again, relatively rare.

When 23-year-old Savannah Combs found out she was pregnant with twins, she was thrilled. And then she learned another rarity, they both had Down syndrome.

Of course, it was emotional news. Savannah and her husband, Justin Ackerman, knew that some people would judge her and her babies because of their condition.

But to Savannah, that’s what makes them incredibly precious.

“It’s very rare what they have, but they’ve been my little gems,” she told News4JAX.