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  3. What are the calculation methods for the expected delivery date of test tube babies?

What are the calculation methods for the expected delivery date of test tube babies?

What are the calculation methods for the expected delivery date of test tube babies?



Calculation method of test tube baby's due date

It is very important for pregnant couples to calculate the expected birth date of IVF. Accurate calculation of the expected date of delivery can help parents and doctors to reasonably arrange the monitoring of pregnancy and delivery work. The calculation method of IVF's expected delivery date will be described in detail in the following four aspects: the last menstruation, ultrasonic measurement, IVF embryo transfer date and embryo sac size.

Last menstruation

The last menstruation method is one of the basic methods to calculate the expected delivery date of test tube babies. First, it is necessary to accurately record the first day of women's last menstruation. Then, the ovulation date was estimated according to the menstrual cycle of the female. Normally, the menstrual cycle is 28 days, and ovulation usually occurs on the 14th day of the menstrual cycle. Combined with the pregnancy cycle time of women, the expected date of delivery can be calculated. However, this method is only applicable to women with regular menstruation, not to couples with irregular menstruation or ovulation disorders.

Ultrasonic measurement

Ultrasonic measurement is an accurate method widely used in the calculation of the expected delivery date of test tube infants. Usually, the first ultrasonic examination can be performed about two weeks after embryo transfer. By measuring the size of the gestational sac, fetal heartbeat and other indicators to determine the number of weeks of pregnancy, so as to calculate the expected date of delivery. Ultrasonic measurement method is more accurate and can calculate the expected date of delivery more accurately. It is a good choice for couples with irregular menstruation or ovulation disorders.

Date of IVF embryo transfer

The date of IVF embryo transfer is one of the important reference factors for calculating the expected date of delivery. In the whole process of IVF treatment, the date of embryo transfer is very certain. According to the date of embryo transfer and the estimated number of days of pregnancy, combined with ultrasonic measurement and the record of the last menstruation, a more accurate expected date of delivery can be obtained. Therefore, the date of IVF embryo transfer is one of the important bases for predicting the expected delivery date of IVF.

Embryo sac size

The size of embryo sac is also one of the important factors in the calculation of the expected delivery date of IVF. Generally speaking, the larger the embryo sac, the earlier the expected date of birth. The size of embryo sac needs to be measured by professional equipment such as ultrasound. By accurately measuring the diameter or circumference of the embryo sac, combined with the calculation of the number of weeks of pregnancy, the expected date of delivery can be inferred. Especially for women with irregular ovulation and uncertain last menstruation, the measurement of embryo sac size can more accurately predict the expected date of IVF. To sum up, the calculation method of IVF's due date mainly includes the last menstruation, ultrasonic measurement, IVF embryo transfer date and embryo sac size. Among them, the last menstruation and embryo sac size are conventional methods, which are suitable for women with regular menstruation; Ultrasonic measurement and embryo transfer date are more accurate calculation methods, which can be used for couples with irregular menstruation or ovulation disorders. Choosing an appropriate calculation method for the expected date of birth will help provide parents and doctors with more accurate information about the expected date of birth, and provide guarantee for smooth delivery and pregnancy monitoring.
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