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Using Fertility Treatment (ART)

Family History of Twins

Previous Twin Pregnancy

Your Twinning Odds Summary

Baseline natural odds: identical (monozygotic) twins about 0.3%, fraternal (dizygotic) twins about 1.2% (roughly 1 in 85 pregnancies). None of the listed factors apply, so your odds are close to the general population baseline.

A general summary of your twinning odds based on known risk factors. Most factors affecting twin odds are genetic and cannot be influenced by lifestyle.

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