IVF technology brings hope to many infertile families, but successful embryo transfer is only the first step. What many expectant parents are most concerned about is: When will the fetus be considered "stable"? Experts point out that the stable period of test-tube fetuses is similar to natural conception, usually with 12 weeks as the key watershed, but the specific time varies from person to person.
After the successful transfer of IVF, the fetus gradually stabilized at about 12 weeks of pregnancy.
,12.This time point is basically consistent with natural conception. The main reason is that the placenta has been formed at this time and can maintain normal growth and development of the fetus by secreting progesterone.
,12,,12.Some experts further pointed out that it may take 3-4 months to fully enter the stable period, and the specific duration is related to factors such as the pregnant woman's physical condition, age and embryo quality.
The fetal development process of IVF and natural conception is basically the same.
.The big difference between the two lies in the early preparation and implantation process. Once the embryo is successfully implanted, the subsequent development trajectory is no different from natural conception.
,.This is because most infertile women have lower hormone levels than those in normal pregnancies, and they need to be supplemented with progesterone and other drugs for toile-protecting treatment after transplantation, which usually lasts until about 10 weeks of pregnancy.
Monitoring after transplantation of IVF is particularly important. The following is the general inspection schedule:
·14 days after transplantation: First blood draw to test HCG values to confirm whether you arepregnant
·21 days after transplantation: Blood samples were drawn to detect the doubling of HCG and the early vitality of the embryo waschecked
·28-30 days after transplantation: First B-ultrasound examination was performed to confirm the location of the gestational sac (intrauterine or extrauterine)
·45-50 days after transplantation: Second B-ultrasound was performed to observe the development of fetal heart and fetalbuds
·About 70 days after transplantation: NT examination was performed to initially screen for fetalmalformations
It should be noted that the specific examination time may be slightly adjusted depending on individual circumstances and the diagnosis and treatment specifications of medical institutions.
It should be noted that the specific examination time may vary slightly depending on individual circumstances and the diagnostic procedures followed by the medical institutions.
Age is one of the important factors.
Age is one of the important factors.Pregnant women under the age of 35 and with good physical fitness may have a shorter time for fetal stabilization; while pregnant women over the age of 35 and with relatively weak physical functions may have a longer time for stabilization.
The quality of the embryo is also very important.Development is also more stable; lower-quality embryos may face more challenges during development.
In addition, the physical condition of pregnant women, including the environment within the uterus, hormone levels, and whether there are any underlying medical conditions, all affect the time required for the fetus to stabilize.
Reasonable rest and proper activity are important.
It’s important to get enough rest and engage in appropriate activities regularly.Pregnant women need to keep adequate rest, avoid overwork and strenuous exercise, but should not stay in bed for a long time, so as not to increase the risk of thrombotic disease.
In terms of dietary adjustments, it is important to ensure a balanced nutrition intake. Consume more foods that are rich in protein and vitamins. Avoid eating raw, cold, spicy, or other irritating foods.
Strictly following the doctor’s instructions is crucial.Take fetal drugs on time, do not increase or decrease the dosage or stop the drug, and regularly carry out prenatal check-up, pay close attention to embryo development.
Avoid having sexual intercourse.During the first three months of pregnancy, if the fetus is unstable, the same room should be avoided to avoid causing uterine contractions and increasing the risk of miscarriage.
,12,.Expectant mothers should maintain a good attitude, follow doctor's advice, check on time, and create a suitable development environment for the fetus.