Many couples who suffer from reproductive problems resort to in vitro fertilization, but there is a fear that the embryo will remain in the uterus after implantation. Learn in this article the most important information about embryo implantation after implantation. In vitro fertilization Many couples face pregnancy problems, such as: low sperm count, fallopian tube blockage, problems with egg production or quality, damaged uterus and many others that prevent pregnancy from occurring naturally, so couples resort to in vitro fertilization.

As the eggs are withdrawn from the ovaries and fertilized with sperm, then the embryo is returned to the uterus after several days have passed from the fertilization of the egg, but here lies the question: when is the embryo fixed after the return?

When is the fetus installed after rewinding?

After the embryo is transferred to the uterus, the embryos have to implant in the lining of the uterus on their own within the next few days in order to develop into a successful pregnancy.

The embryos need 5 days after fertilization for the process of implantation in the uterus to be completed and stabilized, and it takes about 9 days before pregnancy is detected, because the embryo, after about 5 days, comes out of the surrounding membrane, allowing it to implant in the lining of the uterus.

Stages of embryo fixation after regurgitation

Fixation of the fetus after retraction and transfer to the mother''s womb occurs as follows:

Day 1: The blastocyst begins to emerge from its shell.

Day 2: The blastocyst continues to emerge from its shell and begins to attach itself to the uterus.

Day 3: The blastocyst attaches deeper to the lining of the uterus and begins implantation.

Fourth day: The process of implanting the embryo in the womb continues.

The fifth day: the process of implanting the embryo and its stability in the womb is completed, and the cells that develop into the placenta and fetus begin to grow.

Day 6: Human chorionic gonadotropin (hCG), the hormone that signals the development of pregnancy, begins entering the bloodstream.

Day 7 and 8: The fetus continues to develop in the womb and continues to secrete the hormone human chorionic gonadotropin.

Day 9: Human chorionic gonadotropin levels are high enough in the mother''s blood to detect pregnancy using a blood test.

Fertilization steps

After we know the answer to the question of when is the embryo fixed after reflux, we will learn about the steps of the in vitro fertilization process, or what is known as IVF.

The fertilization process takes place in the laboratory in several steps as follows

1. Stimulate ovulation

Medicines called fertility drugs are given to women to increase egg production.

During this step, the woman will have regular transvaginal ultrasounds to check her ovaries, and blood tests to check hormone levels.

2. Egg retrieval

A minor surgery is performed to remove the eggs from the woman''s body.

Where the doctor s a thin needle through the vagina into the ovaries and follicles that contain the eggs, and the needle is connected to a suction device to withdraw the eggs and fluid one by one.

3. Pollination and fertilization

The man''s sperm is put together with the best quality of eggs to fertilize the egg.

The eggs and sperm are stored in an environmentally controlled chamber, and the sperm often fertilizes the eggs a few hours after fertilization.

4. Fetal development

When the fertilized egg divides, it becomes an embryo.

The doctor checks the fetus regularly to ensure that it is developing normally and correctly.

After 5 days, a healthy fetus is one that has a number of cells that divide effectively.

5. Embryo transfer

3 to 5 days after the egg retrieval and fertilization process, the embryos are placed in the woman''s uterus.

Where the doctor s a thin tube containing the embryos into the woman''s vagina, through the cervix and into the uterus.

More than one fetus can be placed in the womb at the same time, which increases the possibility of giving birth to twins or triplets, and the number of fetuses depends on several factors, including the age of the woman.

When the fetus is ed into the uterus, the woman is able to see the air bubble and fluid containing the fetus on the ultrasound screen.

The location of the air bubbles can help predict the implantation site in half of the cases of in vitro fertilization.