Calculation method of test tube baby's due date
The calculation of IVF baby's due date is based on the combination of hospital assisted reproductive technology and clinical experience, and comprehensive consideration of multiple factors. The following is a detailed introduction to the calculation method of IVF due date from four aspects: ultrasound examination, fertilization date, embryo transfer date and progesterone level.
Ultrasonic examination
Ultrasound plays an important role in the calculation of the expected delivery date of test tube babies. The development of embryos can be clearly observed through ultrasonic imaging, including the size of embryos, heartbeat, etc. Doctors will calculate the expected date of birth according to the size and development of the embryo. Generally speaking, there is a normal range in the process of embryo growth and development. Ultrasound can accurately determine whether the embryo development is normal, and then calculate the expected date of birth.
In addition, ultrasound can also determine the formation of the gestational sac and the implantation time of the embryo. This information also has an important reference value for the calculation of the expected delivery date of IVF.
In conclusion, ultrasound provides an important basis for the expected date of IVF by observing the size and development of embryos.
Fertilization date
Fertilization date is also an important reference factor in the calculation of the expected birth date of IVF babies. The fertilization date refers to the date when the egg and sperm combine to form a fertilized egg. According to the date of fertilization, the expected date of IVF can be determined by calculating the number of days of pregnancy.
Fertilization date is usually determined by in vitro fertilization, and the doctor will select the appropriate fertilization method and time according to the specific situation of the patient. Generally speaking, the fertilized eggs need to be incubated in the incubator for 2-5 days, and the embryo development degree is evaluated before being transferred back to the mother, and then the estimated delivery date of IVF is calculated according to the development situation.
Embryo transfer date
The date of embryo transfer is also an important factor in the calculation of the expected delivery date of IVF. The date of embryo transfer refers to the date when the well developed embryos after fertilization are transferred back to the mother. In a specific time after embryo transfer, the expected date of IVF can be calculated by monitoring the level of progesterone in blood or urine.
The date of embryo transfer is usually guided by hysteroscopy or urology. When selecting a suitable date for embryo transfer, doctors will consider the patient's physical state, endometrial conditions, embryonic development and other factors. The selection of embryo transfer date is very important for the calculation of IVF's due date.
Progesterone level
The progesterone level is also an important indicator in the calculation of the expected delivery date of test tube babies. Progesterone is a hormone that can maintain pregnancy, and its level changes can reflect the development of embryos. The progesterone level is monitored by taking blood or urine from patients.
Through regular monitoring of progesterone level, we can know the pregnancy status of patients and the development of embryos. The progesterone level is one of the important reference factors in the calculation of the expected birth date of test tube babies.
summary
Through comprehensive consideration of multiple factors such as ultrasound examination, fertilization date, embryo transfer date and progesterone level, the expected date of IVF can be accurately calculated. Ultrasonic examination can observe the development of embryos; Fertilization date and embryo transfer date indicate the time of IVF fertilization and transfer; Progesterone level can reflect the development of embryos. These factors work together to get the expected date of IVF.
It is very important for doctors and patients to accurately calculate the expected delivery date of IVF. It provides doctors with the basis for reasonable arrangement of prenatal examination and fetal supervision, helps patients prepare for prenatal and delivery, and ensures the healthy birth of test tube babies.
