pseudopregnancy

noun
  1. a condition in which a female animal exhibits physical and behavioral signs of pregnancy without being pregnant, often caused by hormonal changes after estrus
  2. Usage: veterinary/medical term; also called false pregnancy or phantom pregnancy
  3. in humans, a psychological condition in which a person believes they are pregnant and may experience pregnancy-like symptoms, without actual pregnancy
  4. Usage: medical/psychological term; also called pseudocyesis

Examples