While the chances of giving birth to twins increased 72 percent between 1980 and 2018, it’s still pretty rare. About 33 out of every 1,000 births are twins.

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.