What Happens When An Egg Implantation Occurs

Once the egg has been fertilized by the male sperm, the resulting zygote begins its journey to the female uterus in a period that can last up to five days. This is when another process called implantation of the egg begins. What is it and what symptoms can it present in the future mother?

When the woman’s ovum has been fertilized, an egg or zygote forms from the union of the two male and female sex cells, which will make a journey destined to become a new life. The implantation of the egg in the female uterus is a fundamental part of this process.

When does the implantation of the ovule take place?

About five days after fertilization of the egg has occurred, the new embryo reaches the female uterus and is renamed a blastocyst. First, the blastocyst attaches to the walls of the uterus, and then deeply embeds itself in the walls of the endometrium. It is then when the so-called implantation of the ovule has taken place, a moment that begins the pregnancy.

From this moment on, the amniotic sac, full of amniotic fluid, begins to develop, where the embryo will grow, sheltered from the possible blows it may receive. The placenta is also formed, which will act as a barrier and will feed the embryo through the umbilical cord, a duct formed by two arteries and a vein that connects the fetus with the placenta.

Symptoms of Implantation

When the implantation of the ovum occurs and the gestation period begins, the woman may feel different symptoms associated with this stage. Generally, we can divide them into three groups:

  • Symptoms of success. They are the signal of the beginning of the pregnancy. The future mother may suffer from nausea, increased body temperature and basal body temperature, absence of menstruation, changes in taste, breast tenderness, etc.
  • Warning symptoms. In this case, a specialist should be consulted. Among them, we can find implantation bleeding or pain after the absence of menstruation.
  • False symptoms. They are similar to the signs of pregnancy and can be confused with those typical of implantation. Among them, we can find heavy cramps and shooting pains in the abdomen and even digestive disorders, such as constipation.

What is it and Why does Implantation Bleeding Occur?

As we have seen, this bleeding is one of the possible symptoms that the future mother may suffer during the implantation of the egg. In fact, one in three women suffers from it.

Between six and ten days after fertilization, when the embryo attaches to the wall of the uterus, some small veins and arteries of the uterine membrane rupture, a fusion that can lead to blood loss. This can be mild or last up to three days, so it can be confused with menstruation. However, unlike menstruation, implantation bleeding is lighter and darker. That is why much attention should be paid to other typical symptoms of the beginning of the gestation period to confirm the state.

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