Knowledge Center
Twins, Triplets & multiples

Years ago, most twins came as a surprise. Now, thanks to advances in prenatal care, most women learn about a multiple pregnancy early. You might… Read more

In 2005, 133,122 twin babies and 6,208 triplet babies were born in the United States. In 1980, there were only 69,339 twin and 1,337 triplet… Read more

Twins form in one of two ways:
Identical twins occur when a single fertilized egg splits into two. Identical… Read more