How to calculate gestational age during in vitro fertilization (IVF)

This is an automatically translated article.

The article is professionally consulted by Bachelor Tran Hue Tran - IVF Specialist - Reproductive Support Center - Vinmec Times City International Hospital.
Similar to calculating gestational age during a natural pregnancy, calculating gestational age when in vitro fertilization will help pregnant women monitor the development of the fetus as well as the baby's health. Depending on the time, the fetus will have different development, so the care also changes from week to week.

1. What is in vitro fertilization?

In Vitro Fertilization (IVF) is a fertilization method where the egg and sperm meet outside the body (in a test tube). The IVF technique involves many stages. The result of this method is to create an embryo to form a baby. To do that, the doctor will take a mature egg from the woman's body and combine it with sperm taken from the man. The fertilized egg is cultured and developed into an embryo that is then inserted into the woman's uterus. About 14 days after the embryo is placed in the uterus, you can take a pregnancy test for the results.
IVF is the most effective method of assisted reproduction for cases of infertility, unexplained infertility, preimplantation genetic diagnosis or unsuccessful artificial insemination.

IVF là phương pháp hỗ trợ vô sinh hiếm muộn hiệu quả nhất hiện nay
IVF là phương pháp hỗ trợ vô sinh hiếm muộn hiệu quả nhất hiện nay

2. Why should IVF gestational age be calculated?

Gestational age is a term used in pregnancy that refers to the length of a woman's pregnancy. For gestational age, the commonly used unit is weeks of age.
Similar to calculating gestational age in natural pregnancy, ivf gestational age calculator helps pregnant women monitor the development of the fetus as well as the baby's health. Depending on the time, the fetus will have different development, so the care also changes from week to week. Moreover, the calculation of gestational age after embryo transfer in IVF also helps to identify potential risk factors for the fetus.
The fetus will develop through many stages, each stage of the fetus will have different development and effects on the mother, this will help pregnant women prepare both psychologically and nutritionally. merged during pregnancy.

3. Calculating gestational age ivf

When you just found out you are pregnant, pregnant mothers will surely learn how to calculate the fetal age to know how many weeks old the baby is? And when will you give birth?
Natural gestational age is calculated from the first day of the last menstrual period.
For IVF gestational age, the calculation is as follows:
If performing embryo transfer on day 3, when calculating fetal age, the embryo's time in the uterus must be added with 2 weeks and 3 days: Gestational age (weeks) = (Current date – embryo transfer date + 17 days ) / 7.
If embryo transfer is performed on day 5, when calculating fetal age, you will have to add the time the embryo is in the uterus with 2 weeks and 5 days: Age pregnancy (weeks) = (Current date – embryo transfer date + 19 days) / 7

Tuổi thai IVF được tính từ ngày thai nhi hình thành như thông thường
Tuổi thai IVF được tính từ ngày thai nhi hình thành như thông thường
Based on the above calculation, the pregnant woman can know the exact number of weeks of the fetus. Because the error is almost zero, this is the way to calculate IVF gestational age that many people believe and apply in practice.
At Vinmec International General Hospital, there is a package maternity service as a solution to help pregnant women feel secure because of the companionship of the medical team throughout the pregnancy. When choosing Maternity Package, pregnant women can:
The pregnancy process is monitored by a team of qualified doctors Regular check-up, early detection of abnormalities Maternity package helps to facilitate the process. birthing process Newborns receive comprehensive care.

Please dial HOTLINE for more information or register for an appointment HERE. Download MyVinmec app to make appointments faster and to manage your bookings easily.


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