Dilley Sextuplets
Born in 1993, the Dilley sextuplets are the U.S.'s first set of surviving sextuplets. After five unsuccessful years of trying to concieve, Keith and Becki Dilley underwent IVF and eventually became pregnant with six babies. The whole pregnancy, ultrasounds only showed five babies, but during the delivery, it was revealled that a sixth baby had been hiding behind Becki's spleen the whole time.
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