The test results confirm that a mix-up occurred in the implantation of embryos at the Sandro Pertini hospital in Rome on December 4th, ANSA reported on Thursday.

A total of four women underwent fertility treatment at the hospital that day to have viable embryos implanted, three of whom became pregnant as a result of the procedure.

The fourth woman, whose treatment was unsuccessful, had threatened legal action if the twins turned out to be hers.

Quoted in Il Messaggero, the 36-year-old woman – who has not been named – said: “I just want everything to be clear. I want to know if the embryos in the mix-up are mine or not. If they are mine, obviously they are mine and my husband’s babies.”

It has now been confirmed that the twins are not hers and the biological parents of the twins have been identified and notified. 

Italy’s Heath Ministry launched an investigation after the woman who is three-months pregnant with the twins said that prenatal tests showed she was not the genetic mother.

A possible explanation for the mix-up is the similarity in the surnames of two of the couples, according to reports.

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