Embryo transfer is a very important part of IVF, embryo transfer refers to the transfer of embryos cultured in vitro into the woman's uterus. At this time, the embryos transferred can be divided into fresh embryos, blastocysts, and frozen embryos. Depending on the woman's physical condition, the type of embryo transferred is different. Wait a while after the transplant before taking a pregnancy test. During this period, many people will be curious about how to count the number of days of IVF transplantation? Today, I will take you to find out.
How are IVF days calculated?
Clinically, the day of fresh embryo transfer is considered to be the first day of transfer, because at this time the embryo has entered the uterus, which is the first day in the uterus, also known as the first day of transfer.
The first trimester can be checked from the day of transplant to the next 10 days. Usually around the 14th day, blood human chorionic gonadotropin test is done, and the test value can reach about 200-300, which can be determined as early pregnancy, that is, successful transplantation.
Generally speaking, embryo implantation occurs from the day of fresh embryo transfer to the fifth day, and some implantation will be later, usually no more than seven days, which is related to individual differences. Don't be too nervous after IVF transplantation. Pay attention to a light diet, pay attention to nutrition and strengthen exercise, do a regular work and rest, do not overwork, and ensure adequate sleep.
The day of the embryo transfer is counted as the first day of pregnancy.
This relates to the gestational age of IVF, which is usually calculated like this:
1. Calculation on the day of transplantation: After IVF transplantation, the gestational week is calculated from the day of transplantation, and the actual number of days plus 14 days is the actual gestational week.
2. Calculation of the last menstrual period: It is calculated according to the last menstrual period, which is calculated from the first day of the last menstrual period, which is the gestational week.
3. B ultrasound to calculate the size of the gestational sac: it is to calculate the gestational week according to the size of the gestational sac according to the B ultrasound. If the ultrasound result is different from the above two results, the ultrasound shall prevail.
To sum up, the day of IVF transplantation is counted as the first day of transplantation. After the transfer, you can take a pregnancy test within an appropriate amount of time depending on the type of embryo you are transferring. In general, a pregnancy test can be performed 9 to 10 days after fresh embryo transfer, and a pregnancy test can be performed about 7 days after blastocyst transfer. However, it should be noted that it is best not to take a pregnancy test in advance, as the result of a failed pregnancy test may affect the woman's mood, thereby affecting the final implantation of the embryo and leading to the failure of IVF. Therefore, it is best to take a pregnancy test within the time prescribed by the doctor.
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