Is there any relationship between due date and menstrual cycle?

The calculation of the due date means that since it is difficult for every pregnant woman to accurately determine the time of conception, it is medically stipulated that the due date is calculated from the first day of the last menstrual period. The entire pregnancy period is 280 days, or 10 gestation months (each gestation month is 28 days, or 40 weeks). So is there any relationship between due date and menstrual cycle? Regarding the issue of due date and menstrual cycle, I have summarized the following points. Let’s take a look together.

1 If you cannot remember the date of your last menstrual period, you can make an approximate calculation based on the date of fetal movement. The general date of fetal movement is around 18-20 weeks after pregnancy. Adding 20 weeks can calculate the approximate due date.

2 If conditions permit, ultrasound can be used to measure some of the diameters of the fetus' body to determine the gestational age and calculate the expected date of delivery.

3 The calculation method of the expected date of delivery is often 1-2 weeks different from the actual delivery date. If the length of the menstrual cycle varies greatly, the expected date of delivery may differ more. The calculated date is an approximate number. Any delivery within 2 weeks before or after the expected date of delivery is normal.

It is recommended not to be too nervous. Even if the gestational age is accurate, delivery within two weeks after the due date will not have much impact on the mother and baby, but you should pay attention to fetal movements. Fetal movement monitoring is the best means of self-monitoring in the late pregnancy. It can reflect the survival status of the fetus in the uterus. Once the fetal movement is less than 3 times per hour or less than 20 times in 12 hours or the fetal movement weakens, you need to go to the hospital for further examination immediately. The doctor will decide the timing of delivery based on the situation.

The above is an introduction to whether there is a relationship between the expected date of delivery and the menstrual cycle. I believe everyone must have some understanding of it. The due date can remind you of the time range for the safe birth of the fetus, but don't take the due date too precisely. By the 37th week of pregnancy, you should be prepared for delivery at any time, but don't be too anxious, just let nature take its course. If there are no signs of delivery by the 41st week of pregnancy, you should be hospitalized for observation or induced labor if conditions permit.