Determining the exact date of conception is very important for every pregnant woman.Knowing the exact gestational age, the doctor can detect many abnormalities that occur in the process of carrying a child.On the date of conception was calculated presumptive date of childbirth.Many future moms are wondering how to calculate gestational age.How to determine how much time remains before the baby's born?How to count the number of weeks of pregnancy have passed before applying to the doctor?There are several ways to answer all these questions.
In obstetric practice pregnancy counted from the beginning of the last menstrual period.The first day of the last menstrual period is the first day of pregnancy.Adding to this date 280 days, doctors call the anticipated date of birth.This is done given that ovulation occurs two weeks after the onset of menses.If a woman knows the exact date of conception, due date is calculated by adding 266 days to the named day of conception.
in medical centers know how to calculate gestational age accurately.Up to eight to twelve weeks the doctor can accurately determine the gestational age by sending a woman to the US.This period is calculated on the size of the uterus.But after the twelfth week to make it almost impossible, as the fetus begins to develop actively in their individual laws.The development of the fetus in the second trimester of pregnancy depends on many individual factors - from the maternal diet, on the environmental situation in the city, from the physical exertion mother and her mental state.Therefore, if a woman does not know how to calculate the pregnancy, she should make the US in the early stages.In our time, this procedure is carried out in every major hospital.
How to calculate the duration of pregnancy in the second trimester?One of the common ways of calculating the date of birth - the calculation of the first baby move.This calculation is not reliable, but in most cases it works exactly.If a woman gives birth for the first time, she feels her future baby's movements in the twentieth week.If a woman has given birth - this time falls on the eighteenth week.Knowing that a normal pregnancy lasts forty weeks, it is easy to assume, when the child decides to go to the light.However, there are women who feel the stirring of a baby well before the deadline - on the fifteenth-seventeenth week.There are those who feel the movement in the uterus until the twenty-second week.Therefore, you should not rely solely on this simple calculation.
at the latest stages of the doctor will determine the duration of pregnancy uterine size tazomera or tape measures.The height in centimeters is equal to the uterus pregnancy (in weeks).The gynecologist can calculate the size of the gestational age of the fetus, probing it through the uterus and measuring the distance from the fetal head to the pelvic floor.Often determine the duration of pregnancy at the fronto-occipital part of the fruit.All these measurements are quite accurate, but there is nothing more reliable method of determining gestational age using ultrasound in the early stages of development.Typically, doctors use several methods, as it enhances the credibility of the study.
Why is it important to know how to calculate gestational age?A normal pregnancy lasts about 38-42 weeks.Physicians should take care that the woman has not given birth before the set time, and help to give birth to those who have reached forty-second week of pregnancy.All deviations from the norm can badly affect the health of your baby.Knowing the pregnancy, doctors monitor the weight of the fetus and the mother give useful advice.This allows you to regulate the development of the child and to notice abnormalities.During certain periods a woman needs to take the appropriate tests, to pass a screening study ... Knowing the expected date of birth, parents will be able to prepare everything necessary to meet the baby.
