Who we search for
These are the criteria for every Prenori surrogate. Height, resting heart rate and age can be adjusted to your family; the rest are fixed.
Health markers
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Blood pressure Under 110 mmHg systolic
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Blood sugar (HbA1c) 5.0% or lower
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BMI before pregnancy 20 to 23
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Height 170 cm or taller
Her height lowers preterm risk and gives a larger baby room to grow. If you and your partner were small at birth, your baby is likely to be smaller too, and this matters less.
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Resting heart rate 65 bpm or lower
A check on fitness. No study has tested resting heart rate directly against pregnancy outcomes.
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Age 25 to 30
Complication rates are lowest in this range and rise gradually outside it.
Pregnancy history
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Her own children Has given birth to at least one child she is raising
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Preterm birth None in any past pregnancy
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Preeclampsia None in any past pregnancy
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Gestational diabetes None in any past pregnancy
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Delivery All past births vaginal
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Time since last birth 18 to 23 months
Screening
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Medical evaluation Cleared by a reproductive endocrinologist
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Infection screening Negative on standard tests
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Nicotine and drugs None, confirmed by testing
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Psychological evaluation Cleared by a licensed psychologist
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Background check Clear, for her and any partner
800–2,300
women in the US meet the health markers and pregnancy history.
Estimated from US national health survey data. Screening narrows this further.