Madalena Carnauba of Ceilândia, Brazil married at 13 and gave birth to 32 children: 24 sons and 8 daughters.
Trisomy 13 (also known as Patau syndrome) - MN Dept. of Health.
Nonuplets (9)
A set of nonuplets was born on 13 June 1971, in Sydney, Australia to Geraldine Brodrick and her husband Leonard. They were five boys and four girls; two of the boys were stillborn and the last of the surviving babies, a boy named Richard, died six days after the birth.
If the 12 – called duodecaplets – are all born alive they would represent a medical miracle and break the record of American mother Nadya Suleman, who recently gave birth to the world's longest-surviving octuplets.
Jennifer Waters gave birth to five sets of twins within eight years. She became a surrogate mom to three of the five pairs of children. The mom was thrilled that the five pregnancies resulted in 10 healthy twins.
Types of Quadruplets
Multizygotic quadruplets occur from four 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 quadruplets.
Naturally, twins occur in about one in 250 pregnancies, triplets in about one in 10,000 pregnancies, and quadruplets in about one in 700,000 pregnancies. The main factor that increases your chances of having a multiple pregnancy is the use of infertility treatment, but there are other factors.
Trizygotic or fraternal triplets are formed when three separate eggs are fertilised by three separate sperm. The babies can be the same or opposite genders. This means that it's possible to have anyone of the following combinations of babies – three girls/three boys or, one girl and two boys or two girls and one boy.
Sextuplet births are extremely rare
The Woman's Hospital said the odds of having sextuplets were estimated at one in 4.7 billion. Sextuplet births are extremely rare.
As per the university, MoMo twins are some of the rarest types of twins, making up less than one per cent of all births in the United States. According to Dr Gupta, MoMo twins account for “fewer than 0.1 per cent of all pregnancies and one per cent of identical twins”.
If existing twins are identical the chance of having another set is the same as most women, about 1 in 250. If the twins are non- identical the chances of having twins again are much higher.
Monochorionic Monoamniotic Twins
These types of twins share the same chorion, placenta and amnion. This is the rarest type of twin pregnancy – only affecting 1 in every 100 sets of identical twins – and it comes with a higher risk of complications because the foetuses can get tangled in their umbilical cords.
The DNA of monozygotic twins tends not to be 100% identical, and epigenetic and environmental differences further widen the gap between twin pairs. It's not nature or nurture; it's a complex interaction between our genes, our environment, and our epigenetic markers that shape who we are and what illnesses befall us.
Identical (i.e., monozygotic, or MZ) twins share 100 percent of their genes, whereas fraternal (i.e., dizygotic, or DZ) twins generally share only 50 percent of their genes.
A dad who's one of a twin may inherit the gene, but it won't increase his chances of having twins too, because the gene only affects ovulation. The same dad may pass on the gene to his daughter, who then goes on to get pregnant with twins, making it look like twins have skipped a generation .
Twins with different birthdays are rare, and the chance of twins being born in different years is 1 in 2 million, according to the news release by Natividad. Though the incident is rare, it's not the first time twins have been born in separate years.
Multiple pregnancy usually happens when more than one egg is fertilized. It also can happen when one egg is fertilized and then splits into 2 or more embryos that grow into 2 or more babies. When one fertilized egg splits into 2, the babies are called identical twins.
There is one particular power though which twins possess, longevity. Fraternal twins live longer than singletons and identical twins longer still. Male identical twins on average, saw the most benefit.
The worlds heaviest twins, with an aggregate weight of 12.58 kg (27 lb 12 oz), were born to Mary Ann Haskin (USA), of Fort Smith, Arkansas, USA on 20 February 1924.
Octuplets are a set of eight offspring born at one birth. An individual that is part of such a set is called an octuplet.