Once an extremely rare phenomenon, fertility treatments have made multiple births slightly more common today. But conceiving sextuplets without the use of fertility treatments is extremely rare. In fact, the odds of giving birth to sextuplets spontaneously are one in 4.7 billion.

Is it possible to conceive sextuplets naturally?

Once an extremely rare phenomenon, fertility treatments have made multiple births slightly more common today. But conceiving sextuplets without the use of fertility treatments is extremely rare. In fact, the odds of giving birth to sextuplets spontaneously are one in 4.7 billion.

How are quintuplets conceived?

Polyzygotic quintuplets occur from five unique egg/sperm combinations whereas monozygotic multiples are the result of one fertilized egg that splits into two or more embryos. It is possible for a split to occur more than once, producing ​monozygotic triplets or even a rare set of monozygotic quintuplets.