How to Determine the Expected Delivery Date of IVF
IVF refers to an infant who grows and develops by culturing the fertilized eggs in vitro and embedding them into the mother's uterus through assisted reproductive technology. For families of IVF, it is very important to accurately determine the expected date of birth. The following will elaborate on how to determine the accurate expected date of IVF from four aspects. 1. Monitoring of luteal phase and time of embryo transfer
The expected date of IVF depends first on the time point of embryo transfer, usually in the luteal phase of women. The luteal phase is the period when progesterone is produced in the ovary, usually within two weeks after ovulation. By monitoring the start and end time of luteal phase, combined with the time of embryo transfer, the expected date of IVF can be calculated relatively accurately. In addition, the hospital usually determines the exact time of luteal phase through ultrasonic examination to ensure that embryos are transferred in the best state and improve the success rate of pregnancy. Therefore, accurate monitoring of luteal phase and determination of embryo transfer time are crucial for predicting the expected date of IVF. 2. Calculation of gestational age and fetal ultrasound
After successful embryo transfer, doctors usually calculate the pregnancy week to determine the expected date of IVF. The pregnancy week is calculated according to the first day of the female's last menstruation and the time point of embryo transfer. Generally speaking, the pregnancy period is 40 weeks, which lasts for 40 weeks from the first day of the last menstrual period. In the early stage of pregnancy, the growth and development of the fetus is mainly determined by ultrasonic examination. Doctors can judge the age of the fetus and estimate the expected date of delivery by measuring the fetal head circumference, abdominal circumference, femur length and other indicators. Especially, the B-ultrasound examination conducted at 12 and 20 weeks of pregnancy can accurately judge the growth of the fetus and the expected date of delivery. 3. Advanced pregnancy monitoring and fetal growth curve
In the later stage of pregnancy, hospitals usually use more advanced monitoring methods to determine the expected date of IVF. It includes the measurement of amniotic fluid index, the drawing of intrauterine growth curve, and the monitoring of fetal heart rate and fetal movement. By measuring the amniotic fluid index, doctors can judge whether the amount of amniotic fluid is normal and whether the fetal respiratory function is normal. Drawing intrauterine growth curve can intuitively understand whether the growth of the fetus conforms to the normal range. In addition, the hospital will also monitor the fetal heart rate and fetal movement to ensure the health of the fetus and the accuracy of the expected delivery date. 4. Doctor experience and application of advanced equipment
The experience of doctors and the advancement of medical equipment also play a vital role in determining the expected delivery date of IVF. Through rich experience and professional knowledge, doctors can more accurately judge the expected date of birth of IVF babies. At the same time, the application of some medical equipment has also greatly improved the accuracy of the determination of the expected delivery date. For example, the development of modern ultrasonic instruments enables doctors to observe the development of the fetus more clearly and detect more biological indicators, so as to predict the expected date of delivery more accurately. To sum up, the expected delivery date of IVF is determined through comprehensive consideration of many aspects, including luteal phase monitoring and embryo transfer time, pregnancy week calculation and fetal ultrasound examination, advanced pregnancy monitoring and the application of fetal growth curve, as well as the support of doctors' experience and advanced equipment. The comprehensive application of these methods and means can greatly improve the accuracy of IVF's delivery schedule, provide more reliable time reference for families, and help them prepare for the arrival of newborns.
