They named they boys Deniel, Michael, Alex and Martin and the baby girl Tereza. “In our country (birth) statistics have been recorded since 1949 and there’s no mention of quintuplets. In the Czech Republic quintuplets are born on average once every 480 years,” doctor Alena Mechurova said. Share this story and amaze others with this inspiring story! Types of Quintuplets Quintuplets can be fraternal (multi zygotic), identical (monozygotic) or a combination of both. Multi zygotic quintuplets occur from five unique egg/sperm combinations. Monozygotic multiples are the result of a 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. Fully monozygotic quintuplets are rare, so rare that it is difficult to assess the odds. Quintuplets can be all male, all female, or a combination of both. (Monozygotic quintuplets will always be of the same gender.) Most quintuplets are a combination of boys and girls; all male or all female quintuples are rare. The first set of all-female quintuplets were born in the United States in 2015. In 2008, a Polish woman gave birth to a set of “probably identical” girls without the aid of fertility drugs. Odds of Quintuplets In 2005, the National Vital Statistics report for the United States reported the birth of 68 quintuplets and higher order multiples. Because this number includes the possible birth of sextuplets, septuplets or more, it is not determined exactly how many of those births were quintuplets.