How long is the pregnancy cycle of IVF?

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How long is the pregnancy cycle of IVF?

IVF is a kind of assisted reproduction technology, which artificially fertilizes eggs and sperm, and transfers the fertilized eggs into the mother's uterus to continue their development. The pregnancy cycle of IVF involves multiple steps, including ovarian stimulation, egg collection, fertilization and embryo culture, embryo transfer, etc. The pregnancy cycle of IVF will be described in detail from several aspects below.

Ovarian stimulation and egg collection

The first stage of IVF is ovarian stimulation. Doctors will use hormone drugs to stimulate the ovarian growth of more follicles to increase the chance of success. This process usually lasts 10-14 days, during which the doctor will regularly monitor the development of follicles.

When the follicle is mature enough, the doctor will arrange an egg collection operation. This operation is usually carried out when the follicles develop to the best state, usually on the 14th day of the menstrual cycle. During the operation, the doctor uses a slender needle to puncture the ovary and extract the mature eggs.

The whole process of ovarian stimulation and egg collection usually takes 2-3 weeks. But please pay attention to individual differences. Everyone's situation may be slightly different.

Fertilization and embryo culture

After the eggs are collected, doctors will artificially fertilize the eggs and sperm. This can be achieved in two common ways, namely, ordinary fertilization and embryo culture.

Common fertilization is to put eggs and sperm in the same culture dish and let them naturally combine and fertilize. This process is generally completed within 24 hours after acquisition.

Embryo culture is to place the fertilized eggs in a culture dish for observation and culture. Doctors will choose the time of transfer according to the quality of the embryo. The embryo culture time is generally 3-6 days.

embryo transfer

Embryo transfer is the last stage of IVF pregnancy cycle. Doctors will transfer the cultured embryos through the uterine cavity, usually through the vagina, without surgery. This process will not cause severe pain, and most women can quickly resume daily activities.

After embryo transfer, women can receive hormone therapy such as progesterone to promote embryo implantation. Then, blood or urine tests are performed to confirm pregnancy.

Summary

The pregnancy cycle of IVF generally includes ovarian stimulation, egg collection, fertilization, embryo culture, embryo transfer and other stages. Ovarian stimulation and egg collection usually take 2-3 weeks, and fertilization and embryo culture usually take 3-6 days. After embryo transfer, women need hormone therapy and wait for pregnancy results. The whole pregnancy cycle varies according to individual differences, but these are the general conditions of IVF pregnancy cycle.