Pseudopregnancies is a medical term that describes a condition where a female mammal exhibits symptoms of pregnancy even when she is not actually pregnant. It is commonly found in dogs, cats, and rabbits. There are several synonyms for pseudopregnancies, which include false pregnancies, phantom pregnancies, and pseudo-fertilization. In false pregnancies, the animal's hormonal changes mimic the pregnancy cycles even when the animal hasn't conceived. Phantom pregnancies are usually caused by psychological factors such as anxiety, stress, or hormonal imbalances. Pseudo-fertilization occurs when the female animal has been inseminated, but the fertilized egg doesn't implant in the uterus. Understanding the various synonyms for pseudopregnancies can help in identifying the condition and treating it appropriately.