1. The show could easily have been called Jon & Kate Plus 9. Kateâ€™s sextuplet pregnancy was actually septuplets at one time. Seven embryos were present in the early stages but one embryo failed to develop. According to the Guinness Book of World Records, the most live births in a single delivery were eight, courtesy of the so-called Octo-Mom in 2009. When it comes down to it, Kate wasn’t that far off.