Detailed explanation of the pregnancy month calculation method of the uterine uterine chart. The uterine uterine chart is a method to estimate the baby\’s due date based on the month of implantation of the fertilized egg. It has been widely used in pregnancy calculations. The following is a detailed method for calculating the fertile month for uterine evacuation chart. 1. Determine the first day of the last menstrual period The first step in the uterine evacuation chart is to determine the first day of the last menstrual period, which is the basis for calculating pregnancy. Typically, a woman\’s MC (menstrual cycle) is 28 days, but there are exceptions. If your MC cycle is not 28 days,