How long does IVF pregnancy last?

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How long does IVF pregnancy last?

In vitro fertilization (IVF) refers to a baby conceived through in vitro fertilization (IVF) technology. Its pregnancy period is different from that of natural pregnancy. The pregnancy period of IVF will be described in detail in terms of fertilization process, embryo development, transfer timing and pregnancy duration.

Fertilization process

The pregnancy of IVF starts from the process of in vitro fertilization. First, women receive ovulation guidance therapy to increase the chance of ovulation, and then take out mature eggs through gynecological surgery. At the same time, men provide sperm samples. In the laboratory, doctors combine sperm and eggs to help fertilization occur. The whole fertilization process takes about 2-5 hours. After successful fertilization, the formed fertilized eggs enter the culture dish for embryonic development.

embryonic development

After fertilization, the fertilized egg enters the culture dish and continues to develop into an embryo. Generally, embryos will be monitored and evaluated in a culture dish to select the best quality embryos for transplantation. Embryos usually develop in culture dishes for 3-6 days, which may be different according to the specific protocol of IVF and hospital practice.

Transplantation opportunity

Choosing the best time for embryo transfer is also a key link in IVF pregnancy. In the process of embryo culture, doctors will judge the best time for transplantation according to the development of embryos. Generally speaking, the time of transfer can be selected at 2-3 days or 5-6 days of embryonic development. For 3-day embryos, the transfer is usually carried out on the third day after fertilization; For 5-6 day embryos (blastocysts), transfer is usually carried out on 5-6 days.

Duration of pregnancy

The duration of IVF pregnancy is basically the same as that of natural pregnancy, about 40 weeks. Once the embryo transfer is successful and the pregnancy test is positive, the pregnant woman begins to enter the pregnancy period. Like natural pregnancy, IVF may experience early pregnancy reaction, uterine dilatation, fetal development and other stages. If all goes well, the duration of IVF pregnancy is the same as that of natural pregnancy, about 9 months.

summary

The pregnancy period of IVF starts from fertilization and goes through the process of embryo development, selection of transfer time and pregnancy duration. Although the pregnancy period of IVF is somewhat different from that of natural pregnancy, the whole process is roughly similar to that of natural pregnancy. Through the professional medical team and the constantly innovative medical technology, IVF technology provides a feasible choice for couples with fertility difficulties to help them realize their desire to have children.