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What Is The Chance of Having Twins?

Anne Sommers, Licensed Midwife


Q What are the odds of having twins (without having them run in the mom's family?) What are the odds of having twins if you're over 35 years of age?

A The odds of having twins in the general population are 1 in 70 to 1 in 90. Of course the incidence will increase if the mother is taking fertility drugs. With in vitro fertilization, the chances of having twins increases to 1 in 25.

Thirty per cent of twins are identical. This type of twin comes at the same frequency in all ages, and races of mothers.

In contrast, fraternal twins are more common among African American mothers and less common among Asian families.

As you probably know fraternal twinning is influenced by heredity through the mother, since she would have to release two eggs in one cycle. And, the chances of releasing two eggs goes up with age and with the more children a mother already has.

Best wishes
Anne Sommers

Click here to Ask Anne your pregnancy questions

Anne Sommers, LM is a Licensed Midwife in Southern California and founder of Agape Perinatal Consultation & Birthing Services. Anne has attended and personally delivered hundreds of beautiful bouncing babies in some very wonderful and natural settings -- like in the water! She has appeared on various Southern California radio and cable television shows, talked to birth organizations, was editor for several child birth publications and was the owner, editor and publisher of "Mom" Magazine, a quarterly publication in circulation for over seven years. She completed Seattle Midwifery School's Challenge Process and the NARM exam (supervised by the California Medical Board) qualifying her for midwifery licensure. Anne actually made history as noted in the Orange County Register for being one of Southern California's first Licensed Midwives. She is also the mother of two children, born at home, with the attendance of midwives. The Baby Corner The Baby Corner - The Magazine for Expecting & New Parents

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