Her abdomen progressively increased in size, and between the tenth and eleventh months she suffered what she thought to be labor-pains.

These false pains ceased upon taking a bath, and with the disappearance of the other signs was dissipated the fallacious idea of pregnancy.
There is mentioned an instance of medicolegal interest of a young girl who showed all the signs of pregnancy and confessed to her parents that she had had commerce with a man.

The parents immediately prosecuted the seducer by strenuous legal methods, but when her ninth month came, and after the use of six baths, all the signs of pregnancy vanished.

Harvey cites several instances of pseudocyesis, and says we must not rashly determine of the the inordinate birth before the seventh or after the eleventh month.

In 1646 a woman, after having laughed heartily at the jests of an ill-bred, covetous clown, was seized with various movements and motions in her belly like those of a child, and these continued for over a month, when the courses appeared again and the movements ceased.
The woman was certain that she was pregnant.
The most noteworthy historic case of pseudocyesis is that of Queen Mary of England, or "Bloody Mary," as she was called.