Teratoma is not a pregnancy; it is a type of ovarian tumor. Most of the time, this tumor is benign. It commonly occurs in individuals aged between 20 and 40 years. The formation of teratomas is generally due to poor differentiation during the embryonic stage, resulting in the development of this type of tumor. Very occasionally, teratomas can become malignant, which requires high vigilance. Most cases of malignancy are seen in young females aged between 11 and 19. Malignant teratomas are usually solid, but they can also have cystic areas.