How to determine the date of birth?
Every pregnant woman wondering when her baby is born.What are the methods for the establishment of the day, when the light will be a long-awaited baby?
How to accurately determine the date of birth on the fertility of pregnant women
lasts 280 days.If you know the date when fertilization occurred, it is necessary to add to it 280 days, and get delivery date.For example, fertilization occurred on June 2 - hence the birth of the child should be expected to 9th March.To be considered for the calendar using this method on the internet, there are online calculators for determining the date of birth of the child.
How to determine the date of birth on the day of the last menstrual period
When a pregnant woman comes to the reception to the gynecologist, the doctor first thing she asks what day her LMP.To accurately determine the date of birth in this case, the gynecologist uses Negele formula takes three months and add 7 days from the first day of the last menstrual period.For example, last menstrual period date - May 19, subtract 3 months, get 19 February, and we add 7 days - turns on 26 February.This number will be the expected delivery date.This method is suitable for women whose menstrual cycle is 28 days.If the cycle is longer, and accordingly the labor begins later, and vice versa.If the woman's menstrual cycle is irregular, this method of determining the date of birth is not used at all.
How to determine the date of birth using ultrasound
In the first trimester of pregnancy is possible to accurately determine the date of birth with the help of ultrasound.Define it in size of the head and limbs of the fetus.Therefore, if the doctor doubts, and the woman is not sure of when fertilization has occurred, it is directed to an ultrasound.
How to determine the date of birth with the help of a pelvic exam
Just as with the ultrasound, gynecological examination data can accurately determine the date of birth is only in the early stages (before 12 weeks).The reason is that in the second and third trimester of every child develops individually: someone fruit large, someone smaller.Seen from 3-4 weeks of pregnancy, the doctor draws attention to the size and shape of the uterus - in pregnant women, it increases in volume and becomes a spherical shape.The doctor determines the approximate size of the uterus at term pregnancy, and based on it - and the approximate date of birth.
How to determine the date of delivery for fetal movements
In the second half of pregnancy can determine the date of birth for fetal movements in the womb.Their first child begins to make movements at 12 weeks, but the mother does not feel.Only by 20 weeks of the child's movements are to be felt for nulliparous women and 18 weeks - for multiparous.Therefore, if a woman is waiting for the first child and felt the first tremors of the kid, then another 20 weeks of her pregnancy will last.If a woman is expecting a baby in the second and subsequent times, her pregnancy will last 22 weeks.This method is used by many moms, but we must also take into account the individual characteristics of the child's development.
How to determine the date of delivery by a conventional inspection doctor
In the second and third trimester doctor can also determine the date of birth on the height of standing uterus above the vagina and on the length of the uterus with the help of an ordinary tape measures.Thus it is necessary to take into account the physiological characteristics of the structure of the female organism, as well as changes in each woman's body shape during pregnancy.