It was soon discovered that Theresa was in fact carrying twins, although, because Theresa had had a one-night stand with Fox, both the maternity and paternity of the twins was in question. After being informed by Dr. Eve Russell her body was unable to successfully carry both children to term she was given the option of a medical abortion, which would kill one fetus, while ensuring the other would live. At Gwen and Ethan's insistence, Theresa agreed to have the baby with the best chances of survival be saved.