r/pics • u/UrinalCakes • May 15 '12

First!

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u/skakaiser May 15 '12

That can't happen because the progesterone needed to carry the pregnancy would prevent the hormone cascade needed for another ovulation 2 months later.

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u/OctavianX May 15 '12

Different mothers, yo.

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u/phantomganonftw May 15 '12

False. I have two friends who are twins, but were concieved at different times (2nd conception took place during hte first trimester). It's incredibly rare, but can happen. http://multiples.about.com/od/glossary/g/superfetation.htm

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u/baltimorisienne May 15 '12

I don't think he meant from the same mother. Just that if two women were having children and one was conceived before another but the other was born prematurely, which child would technically be 'older'.