The presence of Montgomery’s nodes cannot be used as a basis for pregnancy, let alone the timing of the pregnancy. Montgomery’s nodes are actually a normal physiological structure of the breasts, only that they are not very visible under normal circumstances, and become visible after pregnancy due to hormonal stimulation. However, the presence of Montgomery’s nodes should not be taken as the basis for diagnosing pregnancy, and the exact time of pregnancy should not be determined by Montgomery’s nodes. If you want to know the exact time of pregnancy, you need to calculate according to the time of menopause, that is, the number of days from the time of the last menstrual period to the present time, of course, there may be some errors, and you can only know a general range, especially for those who do not have a regular menstrual period, the time of pregnancy varies a little more. If you are not sure how to calculate the time of pregnancy, you can consult your doctor during the maternity checkup, so that the time you get is more accurate.