Reports of van der Sloot, 29, getting the woman pregnant first appeared in the Dutch newspaper De Telegraaf, which confirmed the development through the Dutch man’s lawyer, Maximo Altez.
Altez told the Dutch paper that the woman, who has only been identified as “Leidi,” is in the third month of the pregnancy, the Associated Press reported.
The woman, previously identified in the Peruvian press as Figueroa Leydi Ucedi, denied to local news outlets that van der Sloot impregnated her.
She reportedly became pregnant after seeing van der Sloot during an unsupervised visit to the 29-year-old at Lima’s Miguel Castro Castro prison, the AP reported. Leidi told De Telegraaf that she had been on birth control but forgot to take it prior to her visit with van der Sloot.
Whether the visit was allowed under prison rules is unclear, the Telegraph reported, as is any punishment van der Sloot would receive should he be found to violate the rules.
While Miguel Castro Castro prison has a rough reputation, van der Sloot reportedly lives a cushy life inside the harsh walls of the Lima jail.
Leidi allegedly meets him in the prison for conjugal visits and brings candy with her for him to run a sweet shop out of his cell, according to the Daily Mail.
A Daily Beast profile of the overcrowded prison detailed how van der Sloot was addicted to video games and uses cocaine at Miguel Castro Castro, according to sources who spoke to the news website.
Flores’ father, Ricardo Flores, called for an investigation of van der Sloot’s living arrangement at the prison, the tabloid reported.
Holloway, an Alabama high-school student, disappeared in Aruba in 2005 on the last day of a trip she took with her classmates. Van der Sloot was among the last people to see Holloway alive.
While he hasn't been charged in Holloway's disappearance, van der Sloot is facing extortion charges in relation to the case. He allegedly tried to extort Natalee's mother, Beth Twitty, for $25,000 in return for information he said he had about her death.
Van der Sloot's extradition to the U.S. to face the extortion charge has been a drawn-out process.