Lisa Marie Presley and Danny Keough in June 1991.Ron Galella, Ltd./Ron Galella Collection via Getty ImagesLisa Marie Presley said in her posthumous memoir that getting an abortion was the "stupidest" thing she did.Presley was devastated after and "plotted" to get pregnant again with then-boyfriend Danny Keough.She got pregnant and married Keough in October 1988.In her posthumous memoir, Lisa Marie Presley detailed the calculated steps she took in order to get pregnant by Danny Keough after regretting an earlier abortion.Presley, who died at 54 years old in 2023, wrote about their relationship in "From Here to the Great Unknown," released Tuesday.