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Identical and Fraternal Twins
Is it harder to detect Identical or fraternal twins in a ultrasound.
sometimes identical twins do have their own sacs. it just depends if the egg split within the first 12 days or not. that's why my ob is having problems determining if mine are identical or not. they share an aminiotic sac but two indvidual gestational sacs.
I would imagine it would be harder to detect identical since one could be hiding behind the other.
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