How to check the specific number of days pregnant (detailed explanation of pregnancy period calculation method) Pregnancy is one of the most special experiences in every woman\’s life, and the calculation of pregnancy period is also very important. Mastering the pregnancy period calculation method is crucial to understanding the baby\’s health status and the changes in the pregnant mother herself. Next, we will explain the pregnancy calculation method in detail from the following four aspects. Ovulation day method The ovulation day method is the earliest and most commonly used method for calculating pregnancy. Generally speaking, the first day of each female cycle is the first day of the last menstrual period, and menopause is the last day of the cycle. In this cycle, ovulation usually occurs during menstruation