Every pregnant woman looks forward to the arrival of her child, and when she knows she is pregnant, the due date is what pregnant women most want to know. Menstruation is an important factor in calculating the due date. Is it true that if the menstrual cycle is long, the due date will be postponed? Let's take a look with the editor below!
Will a long menstrual cycle delay the due date
The length of the due date is related to the length of the menstrual cycle, and if the menstrual cycle is long, the due date may be postponed. The due date is not an exact delivery date. Usually, doctors calculate the due date based on the last menstrual period and normal cycle of the pregnant woman, so there is a certain degree of error in this prediction. Therefore, a long menstrual cycle may delay the due date. It is recommended to go to the hospital for detailed examination near delivery to determine the delivery time.
How to calculate the due date
Menstrual calculation method
Expectant mothers can calculate based on the date of their last menstrual period, using the method of month+9/-3 and date+7. If the last menstrual period falls on January 8th, then the expected month of delivery is 1+9=10, the date is 8+7=15, and the due date is October 15th. For example, if the last date of menstruation is October 5th, then the expected month of delivery is 10-3=7, and the date is 5+7=12, which is July 12th of the following year. Of course, the premise of this calculation method is that the female menstrual cycle is stable at 28 days, but the actual situation is different for each female cycle, so doctors will make appropriate adjustments.
B-ultrasound calculation method
After a woman completes an ultrasound, doctors can use relevant data to calculate the approximate gestational age of the fetus, including the distance between the fetal head and biparietal area, the length of the head and hip, and the length of the femur. This is also the method most doctors use to determine the expected delivery date.
The above is the relevant content about the due date introduced by the editor. Through the above content, it is not difficult to find that the length of the menstrual cycle is related to the length of the due date. There is more than one method to calculate the due date. If women want to accurately know their due date, they need to record their menstrual cycle carefully and cooperate with the doctor's diagnosis to determine it.
