Note 12 — OF THE MODE BY WHICH PREGNANCY MAY BE DETERMINED.
Reading edition
Dr. Heberden was acquainted with a lady who never ceased to have regular returns of the menses during four pregnancies, quite to the time of her delivery.—Heberden Commentaries.
This opinion is confirmed by Gardien, Dewees, Hamilton, Desormeaux, Puzos, Francis, &c.