How the first stirring and date of birth are related
The day in which the future mother feels the first stir of her baby, many centuries is the reference point for determining the date of birth. And although today such a method does not differ in importance and accuracy, but, nevertheless, it is used, as in the old days, when no one had an understanding of ultrasound research.
Today, an obstetrician-gynecologist who watches a woman must make this date on a medical card of a pregnant woman. The term of the first perturbation is often used to correct the expected date of childbirth (PDR), calculated by other methods, in particular with an orientation toward the last menstruation. And since some women do not always remember this date, the knowledge of the period of stirring helps to determine a fateful day in their life.
For sure, all women know that the first active movements in the womb of the mother, called stirring, the future child commits on the 20th week of pregnancy, that is, on her & bdquo; equator & rdquo; . Adding another 20 weeks to the date, and the PDR is determined. But such a seemingly simple method of calculation is only partially true. Taking it into account, it is worth remembering the following:
- A child in the womb begins to move on the twelfth week of the term. But women usually do not feel these early movements, because they are very weak.
- Nursing mothers usually feel the first stirring of a future boy or a girl in the twentieth week of bearing the fetus. During the second pregnancy, the term is shifted closer. This means that for the first child the date of birth is calculated by adding 20 weeks to the ticking date, and for the second child - 22 weeks.
- Using this method, it is necessary to take into account the constitution of the woman. If she is thin, moves little, sensitive, then the first tremors of the child can feel much earlier. There are cases when women of such a constitution felt them at the 14th week. They, according to the pregnant, were very light, like tickling. But the dense complexion of ladies is more difficult to feel the first movements of the baby, in contrast to the slender and lean.
- Female primogenitors simply do not know what exactly the first intrauterine movements should be like, as it happens. Therefore, they sometimes miss them, not paying attention to the light, faint movements of the fetus. Natives are more sensitive to them, because they are already experienced.
- The first movements of the baby in the uterus also depend on the thickness of its walls. And this is also an individual parameter.
Errors in calculating childbirth by first moving
Sometimes targeting this date may lead to an inaccurate definition of PDD. Given that in some women the pregnancy lasts 41 weeks, and not 40, this error may be too large.
Here's a simple example. A thin and sensitive woman sensed the first stirring of the future baby at the 17th week of pregnancy. The gynecologist in the card wrote that it was 20 weeks. Consequently, this lady is waiting for delivery at week 37, while there are still 3-4 weeks left before their first harbingers. Since perenashivat kid is dangerous, the doctor is ashamed of the woman can decide to call birth, which would be wrong.
If such calculations are carried out, then you need to take into account that the child will be born on the calculated day. This happens very rarely. Medical statistics indicate that labor takes place between 38 and 42 weeks. Therefore, the future mummy should not worry and & bdquo; sit on suitcases & rdquo; on the day of the PDR. Nervousness and anxiety will not accelerate the date of birth. It is also worth considering that in case of multiple pregnancies, babies are born on the 37th week of the term.
So, modern medicine calculates the date of birth strictly on the time of the last monthly period in a woman, and the very first stirring, its term is a corrective moment.