First of all, it is important to start by saying that every pregnancy process has its own time and progress, but an ideal pregnancy period lasts between 38-42 weeks from your last menstrual date. Therefore, from the beginning of the 40 weeks of pregnancy, get ready to give birth at any moment. (Tips for Childbirth and Labor)
Meaning, the pregnancy due date calculator knows how to get the data representing the date of your last menstrual period, and from there it calculates the average of 40 weeks, ie 280 days, and using the numbers in algorithmic functions, it knows how to provide the number of weeks and days since pregnancy has begun, the number of weeks and days left until the end of the pregnancy and of course an estimated date of birth.
Thus, as you understand, the pregnancy due date calculator provides an approximate date of birth, because we can not know exactly when your time to give birth will come. As a result, the pregnancy due date calculator calculates the data according to an average of 40 weeks, and that how the data is generated.
To go to the pregnancy calculator - click here.