E! News said Kardashian's first daughter with boyfriend Scott Disick was born early Sunday, and weighed in at 7 pounds, 14 ounces. The couple also have a 2-year-old son, Mason.
"Scott and I are overjoyed to welcome our precious angel Penelope Scotland Disick into our lives. We are forever blessed. Mommy and baby are resting comfortably," Kardashian, 33, told E! News in a statement.