An Italian woman is currently pregnant with another couple’s twins after a mix ump at an IVF clinic caused the wrong fertilized embryo to be implanted in her uterus. 

The Sandro Pertini Hospital in Rome didn’t alert the woman of the mix up until she was already three months along in the pregnancy.  The switch apparently happened sometime in early December.  The nation’s ministry of health is investigating the incident and has ceased all further implantations at the clinic until it concludes its look into this melee. 

Read more about the mix up in USA Today.