Jennifer knew that her pregnancy at the age of 37 was fraught with risks—so she was all the more excited to be expecting twin boys. However, detailed ultrasound images at 12 weeks showed that there were significant complications. Both fetuses were missing limbs, and fluid was accumulating in their brain cavities. An additional ultrasound and a more invasive test, where a tissue sample was taken from the mother’s amniotic fluid, confirmed a diagnosis of trisomy 18 (where someone has an extra copy of chromosome 18) three weeks later.
While these tests were underway, one of the boys died in the womb, and the second fetus’s chances of survival looked increasingly
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