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As Elayne wrote, if it runs in your family.
Also, I've noticed a lot of women who go through IVF treatments have multiple Births.
but why not let nature take it's natural course.... :)
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I'm assuming you mean twin babies? You would have a better chance of having twins if there is a history of twins in your family or if you take fertility pills.
Identical twins are non genetic, Fraternal twins are genetic.
Make them? Fraternal=test tube. Identical=no way for sure..its nature.
Why on Earth? Crying from the left breast, and crying from the right breast.
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