Picture this. You're having trouble conceiving. You start undergoing fertility treatments. You finally get pregnant! You're happy. You're elated. You're going to be a mom! But then three months into your pregnancy, you find out that you were implanted with the wrong embryos. Oh, and P.S., you're pregnant with twins. You're pregnant with somebody else's twins.
Unfortunately, this isn't a hypothetical situation. It's a sad and confusing reality for one poor woman in Rome. At this point, there isn't a clear answer as to how exactly the mix-up happened, and USA Today reports that it's "unclear whether any other improper pregnancies resulted." The only information available now is that four couples received fertility treatments at the Sandro Pertini Hospital on December 4, and on March 27, Rome's health authorities learned that there was a "genetic incompatibility" between parents and embryos.