Joran van der Sloot, who is serving 28 years in jail for murdering Stephany Flores, has impregnated his girlfriend while imprisoned in Lima, Peru.
Van der Sloot confirmed the pregnancy during a telephone interview on Saturday, reports the Dutch newspaper De Telegraaf.
A woman, identified only as 'Leidi,' had sex and became pregnant during an unsupervised visit with the convicted murderer, reports the Associated Press.
Van der Sloot said Leidi uses the birth control pill but forgot to take it. Leidi reportedly will not have an abortion due to her Catholic faith, but she will have sex with a murderer.
After being convicted of murdering Stephany Flores, Van der Sloot repeatedly confessed to also killing U.S. teenager Natalee Holloway, who disappeared in 2005.
However, he retracted his confessions and is now appealing the 2010 Flores verdict.