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What are the chances of having fraternal twins?

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The chances of having identical or non-fraternal twins is the same for every woman, wherever she lives and no matter what her family history. Identical twinning is random and universal – it is not reliant on two eggs being released but one egg being fertilised by one sperm and then dividing into two. read more

Nearly 4 percent of babies in the United States are now born in sets of two, three or more, with the majority — about 95 percent — of these multiple births being twins. 8 factors that increase the odds of having twins. A number of factors are at play when it comes to your chances of having fraternal twins. read more

The chances of having identical twins are around 1 in every 285 pregnancies. Around one in every three sets of twins is identical. Some statistics – just to get you thinking! If you are over 45 your chances of having twins increases to around 17%. read more

Heredity: If you're a twin, or if there are twins in your family, you're slightly more likely to have a set yourself. Age: The older you are, the higher your chances of having fraternal twins or higher order multiples. Women age 35 or older produce more follicle-stimulating hormone (FSH) than younger women. read more

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