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    Superfetation: Twins, Causes, Diagnosis, Risks & Delivery

    • For superfetation to take place without assistive reproductive technology (ART), you’d go through two menstrual cycles, back-to-back. Each cycle would result in a pregnancy. The scenario would go like this: During y… 展开

    What Prevents Someone from Getting Pregnant While They’Re Already Pregnant?

    Once you’re pregnant: 1. Your hormoneschange to prevent your ovaries from releasing another egg. … 展开

    Cleveland Clinic
    What Causes Superfetation?

    Superfetation is so rare that researchers don’t have enough data to confirm its causes. There are only a handful of these pregnancies documented. Most of them involve assistive … 展开

    Cleveland Clinic
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