Nidation: what it is, when it occurs and how to identify

Women know that any bleeding that appears can be cause for celebration or despair. Those who want to get pregnant don’t even want to hear about menstruation, but noticing implantation can be like winning the winning ticket.

Perhaps you have children and have never heard of nesting. That’s because it’s a process that takes place inside the woman’s body, but without much fanfare. Below we clarify the main questions about the phenomenon of implantation:

What is nesting?

Implantation is the moment when the embryo is implanted in the woman’s uterus, after the egg is fertilized by the sperm. According to gynecologist and obstetrician Marcos Medeiros de Sousa, it is when the zygote (product of fertilization) arrives in the uterine cavity and settles in the endometrium. Whether in single or multiple pregnancy, there is no difference in implantation.

What are the symptoms of implantation?

Sousa explains that, generally, implantation has no noticeable symptoms. In fact, the most common is not to have symptoms, unless the woman is very attentive to her body’s signals and knows her menstrual cycle well.

What can occur during implantation is slight pelvic discomfort, cramping and a little bleeding. Implantation bleeding occurs because, by attaching itself to the endometrium, the embryo ends up releasing waste from the wall of the uterus.

For those who are trying to get pregnant, that spot of blood that appears in their panties can be the first sign that the long-awaited baby is on the way. It is very difficult, however, to be sure that it is implantation, as bleeding can have numerous causes, from a small injury to menstruation itself.

In addition, it is important to note that neither symptoms nor implantation necessarily indicate pregnancy. Only a blood test is able to detect whether a woman is pregnant or not.

When does nesting occur?

Implantation usually takes place 7 days after fertilization. However, this period can vary a lot, as it depends on when ovulation occurs, which is more or less in the middle of the cycle, but in many cases, it happens before or much later – the so-called late ovulation. Therefore, nesting can occur within 7 to 15 days after the fertile period.

What is the difference between implantation bleeding and menstruation?

Implantation bleeding is different from menstruation in the amount, duration and color. Implantation bleeding is usually pink or brownish, more or less like coffee grounds.

“Bleeding, when it occurs, is different from menstrual flow because it is scarcer, does not last more than 3 days and has a darker color”, explains the obstetrician.

In addition, in some cases, it differs from menstruation by the period in which it occurs. If ovulation happens in the middle of the cycle and the egg is fertilized, implantation can occur a week later, that is, around the third week of the cycle, while menstruation occurs at the beginning of the next cycle.

It is very common for women to think that it is menstruation that came a little earlier, when, in fact, it was implantation bleeding. Surely you know a woman who discovered her pregnancy late because she thought she had her period the month she got pregnant. This is more common in women who have very little bleeding, due to birth control use, or an unusual cycle.

So how do you know? The big difference is that menstruation bleeding progresses and increases, while implantation bleeding stops. When in doubt, taking the pregnancy test is the best option!

Does implantation bleeding happen to all women?

Implantation occurs in all women when fertilization is successful. But implantation bleeding is not a rule, that is, it may or may not happen. In fact, in most cases bleeding does not occur or it goes unnoticed by the woman.

What can harm nesting?

Some factors can impair implantation, all of them hormonal or anatomical.

Sousa points out that nidation occurs whenever fertilization occurs, but sometimes, due to anatomical alterations of the uterus, decreased ciliary movements of the fallopian tubes and endometriosis, nidation may not occur and abortion or ectopic pregnancy may occur – when the embryo is fixed. in the tubes.

In any case, it is important to always count on your gynecologist and obstetrician in case of any event or doubt, keeping up to date with what is happening to your body.