With the onset of the long-awaited pregnancy, a woman is wondering when the baby is born?There are several ways to calculate the date of birth, but it is better to do it together with your doctor, not your own.
How to determine the due date of menstruation and ovulation?
pregnancy occurs at the time of release of the egg from the ovary, but a woman can not know exactly when ovulation has occurred, only if it does not track the mature egg to become pregnant.
So tentatively assumed that this event takes place on day 14 (at a cycle of 28 days).According to estimates obstetric pregnancy lasts 280 days, that is how much must be added to the date of ovulation to know the approximate delivery date.
To calculate the date of delivery of menstruation, there is a simple formula Negele from the date of the last menstrual period is necessary to take three months, and then add seven days.Of course, this calculation is an estimate, t. To. It is suitable for those who cycle is 28 days, otherwise the date of birth can move forward or backward a few days.
How to determine the date of birth on the US?
to determine the date of delivery to the US is better to do 12 weeks of pregnancy.This term can be determined more accurately the size of the fetus.By the time available to be added to the missing forty weeks.At a later moment each female fetus gaining weight at its own pace, depending on the individual characteristics of the organism and the possible diseases of women's.Therefore, in conclusion ultrasound (second and third trimester) of pregnancy period is indicated with an accuracy of 1-2 weeks.
How to determine the date of birth for gynecological and obstetric examination?
The size of the uterus during the inspection for up to 12 weeks, a gynecologist with more experience can determine which week of pregnancy is a woman.Then you can add the rest of the week, then get the date of birth.At a later time, increased fruit and, hence, uterine occurs all individually, so this method becomes unreliable.
Of course, in the second half of pregnancy can be applied obstetric examination, t. E. To determine the height of standing uterus, and measure the circumference of the abdomen at the level of the navel.Each period has its own parameters, knowing on what week of pregnancy is a woman, you can determine the date of delivery by adding the remaining term.Distort the data may not carry out the measurement, or pathology, such as oligohydramnios or polyhydramnios, when the volume of the stomach will not fit the time available.
How to determine the date of delivery of the fetal movement?
accepted that women with a first pregnancy begin to feel the fruit of a period of twenty weeks and multiparous - for a period of eighteen weeks.Accordingly, adding twenty and twenty-two weeks to the date when it was noticed the first stirring, you can calculate the day of delivery.This method can not be considered reliable as thin women can feel the stirring of much earlier (sixteen weeks) and full - later (in the twenty - twenty-two weeks).It is a variant of the norm, but it greatly distorts the calculation of the date of delivery.
should try to make calculations in all possible ways as to calculate the date of birth will not work alone method.It is necessary to take into account the fact that a normal pregnancy can last not just exactly forty weeks, but less than (thirty-eight) and more (forty-two).Therefore, any calculation is approximate.The most commonly used is the calculation of menstruation and ultrasound.Do not get too expect the kid to a particular day as normal deliveries will begin when the cervix and the fruit ripen fully.
