Pregnancy process of test tube baby
IVF technology is a method of in vitro fertilization (IVF) to help infertile couples achieve their reproductive aspirations. The pregnancy process of IVF mainly includes the following steps: in vitro fertilization, embryo culture, embryo transfer and pregnancy monitoring.
In vitro fertilization
In vitro fertilization is the first step of IVF technology. First, the woman received ovulation induction treatment for a period of time to increase the number of ovulation. The doctor monitors the growth of the ovary and determines the best time for fertilization. Then, doctors use ultrasound guided puncture technology to extract the eggs. At the same time, the man provided semen samples and selected the best quality sperm after treatment.
Next, eggs and sperm are fertilized in vitro in the laboratory. Doctors mix eggs and sperm to promote fertilization. Generally, the fertilization rate is about 50%. After successful fertilization, the fertilized eggs formed are called embryos.
Embryo culture
After the fertilized eggs are successfully cultured, they enter the stage of embryo culture. Embryos are incubated in the incubator in the laboratory in a specific culture liquid. In the incubator, the embryo will go through different stages of development, from two cell stage, four cell stage to eight cell stage, and finally develop into a blastocyst.
The embryo culture time is generally 3-6 days. During the culture process, doctors will evaluate the embryos to select the most promising embryos for transplantation. According to different situations, embryo chromosome screening or genetic gene testing can also be selected.
embryo transfer
After the embryo culture is completed, the doctor will choose an appropriate time for embryo transfer. Generally speaking, the embryo will be transferred to the right place in the woman's uterus. This process is usually painless and non-invasive, and does not require hospitalization. Doctors use catheters to transfer embryos directly into the uterine cavity.
After transplantation, the woman needs a period of rest and recuperation. Within two weeks after transplantation, the woman needs to continue to use progesterone or other hormone drugs to help maintain pregnancy.
Pregnancy monitoring
After pregnancy transplantation, pregnancy monitoring is usually performed 10-14 days after transplantation. This can be confirmed by detecting the level of pregnancy hormone in the blood or by B-ultrasound examination. If the pregnancy is positive, the doctor will continue to track the progress of the pregnancy and conduct regular prenatal examination.
During pregnancy, the doctor will advise the woman to continue taking progesterone or other supporting hormones to help maintain the pregnancy. There may be some uncomfortable symptoms and mood fluctuations during pregnancy, and the doctor will give corresponding suggestions and support according to the specific situation.
Summary
The pregnancy process of IVF includes in vitro fertilization, embryo culture, embryo transfer and pregnancy monitoring. In vitro fertilization helps fertilize eggs and sperm to form embryos through laboratory technology. Next, the embryos are cultured in the laboratory, and the most promising embryos are selected for transfer. The embryo is transferred to the woman's uterus, and then pregnancy monitoring is carried out to confirm whether the pregnancy is successful. The whole process requires the precise operation of doctors and the cooperation of patients. It is hoped that with the help of IVF technology, many infertile couples can realize their parents' dreams.
