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If you are an adult, you probably think you’re pretty knowledgeable about sex.
Ok, maybe you might not be an expert; you know definitely basics, right?
Well, prepare to have your illusions shattered – as explained by The New York Times, it turns out a woman can get pregnant while she is already pregnant.
But before you freak out, it is incredibly rare in humans.
The process is called superfetation, and for such a thing to happen a very specific set of circumstances would have to happen:
It did happen to a woman in Arkansas in 2011, though.
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