Age. According to the Office on Womens Health, women who are aged 30 years or older are more likely to conceive twins. The reason for this is that women of this age are more likely than younger women to release more than one egg during their reproductive cycle.
What makes your chances higher of having twins?
Factors that increase the chance of twins include: consuming high amounts of dairy foods and conceiving over the age of 30, and while breastfeeding. Many fertility drugs including Clomid, Gonal-F, and Follistim increase the odds of a twin pregnancy.
What mothers are more likely to have twins?
Twins are more common in large and tall women than in small women (in an often-cited study, women who gave birth to twins were on average more than an inch taller than the average female, or 5 feet 5 inches vs. 5 feet 3 ¾ inches). Experts say its likely again because taller women have higher levels of IGF.
What ethnicity is more likely to have twins?
Race – African-American women are more likely to have twins than any other race. Asian and Native Americans have the lowest twinning rates. Caucasian women, especially those over age 35, have the highest rate of higher-order multiple births (triplets or more).
What age group is more likely to have twins?
Those patterns were strongest in women aged 35 and older, followed by women aged 30-35, and lastly by women in their 20s. Fraternal twins develop when two eggs are fertilized.
Can twins be identical if they are boy and girl?
In 99.9% of cases boy/girl twins are non-identical. However, in some extremely rare cases resulting from a genetic mutation, identical twins from an egg and sperm which began as male (XY) can develop into a male / female pair. The resulting babies are then male (XY) and female (XO).