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How to calculate the expected delivery date of IVF?

How to calculate the expected delivery date of IVF?



Steps for calculating the expected birth date of test tube babies

IVF refers to the babies born by implanting the fertilized eggs into the mother's uterus after in vitro fertilization through assisted reproductive technology. For the calculation of the expected date of birth of test tube babies, doctors usually use clinical experience and specific calculation methods to determine the expected date of birth. The following will elaborate on the calculation steps of the expected delivery date of IVF from four aspects: ultrasound examination, the date of the last menstrual period of the pregnant woman, the date of embryo transfer, and the calculation of pregnancy week.

1. Ultrasonic inspection

Ultrasonic examination is one of the important bases for calculating the expected date of delivery of test tube babies. Through ultrasonic imaging technology, doctors can measure the fetal head, femur length and other size data to determine the degree of fetal development and the expected date of delivery. Generally speaking, in the early fetal period, the accuracy of ultrasound is high. The growth rate of the fetus will be different in the pregnancy period of about 20 weeks, so doctors usually use the gestational week calculation method to calculate the expected date of birth in combination with the ultrasonic examination data. According to the ultrasonic examination data and doctors' clinical experience, the expected date of delivery of IVF can be determined.

2. Date of last menstrual period of pregnant women

The date of the last menstrual period of pregnant women is also one of the important reference factors for calculating the expected delivery date of test tube babies. The first day of a pregnant woman's last menstruation is regarded as the first day of the pregnancy cycle. Because most women have regular menstrual cycles, the expected date of IVF can be calculated more accurately when the last menstrual date of pregnant women is known. According to the last menstrual date of pregnant women and the pregnancy week calculation algorithm, the expected date of IVF can be estimated.

3. Date of embryo transfer

The date of embryo transfer is also one of the important reference factors for calculating the expected delivery date of IVF. The date of embryo transfer refers to the date when the fertilized egg is implanted into the mother's uterus. According to the date of embryo transfer and the average rate of embryo development, the expected date of IVF can be calculated.

4. Calculation of gestational week

Pregnancy week calculation is a method to calculate the expected delivery date of test tube baby by comprehensively considering multiple factors. According to the data of ultrasound examination, the date of the last menstrual period of pregnant women and the date of embryo transfer, combined with the clinical experience of doctors, the pregnancy week calculation method can be used to calculate the expected date of delivery of test tube babies. The commonly used methods for calculating gestational age include Naegle method and pregnant women Bailey method. These methods can help doctors and pregnant women understand the development of the fetus and arrange prenatal inspection and delivery plans by accurately calculating the gestational age. To sum up, the estimated delivery date of IVF is generally determined by ultrasound examination, the last menstrual date of pregnant women, the date of embryo transfer, and the calculation of pregnancy week. Doctors will comprehensively consider these factors and combine clinical experience to calculate the expected date of delivery. Accurately predicting the expected date of IVF can help doctors and pregnant women make reasonable prenatal planning and management, and ensure the health of pregnant women and fetuses.
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