Implantation: This is what happens in your body during fertilization

implantation
This is what happens in your body during fertilization

© Rabizo Anatolii / Adobe Stock

The implantation of a fertilized egg cell in the uterus is always a miracle of nature. You can find out here what exactly happens to your body and whether you can feel the implantation or influence the process.

Did you know that in addition to ovulation and fertilization of the egg cell, successful implantation in the uterus, also known as nidation, is a is an essential requirement for pregnancy? It takes place aboutfive to ten days after fertilization. The body is then signaled via various hormones: Hey, you’re pregnant! The pregnancy hormone HCG (human chorionic gonadotropin) is primarily responsible for this.

What happens before implantation?

Before implantation can occur, fertilization must occur. In order to make this possible, egg cells have matured in several egg sacs (follicles) in your ovaries since your last menstrual period. About 10 to 14 days after your last menstrual period, the ovulation A: One of the follicles bursts and sends an egg cell on its journey through your fallopian tube towards the uterus. If you want to get pregnant, now is the right time: The egg cell can be fertilized in the fallopian tube within the next 24 hours. If a sperm cell meets the egg cell after ovulation, fusion occurs and the egg cell is fertilized. If the egg cell and sperm don’t meet, the egg cell disintegrates and is carried away with your next bleeding.

What exactly is implantation?

If the fertilization of the egg cell has worked, implantation continues. This happens in the following steps:

  1. The fertilized egg cell – too zygote called – makes its way through the fallopian tubes into the uterine cavity. It is supported on its way to nidation by the cilia, which energetically push the egg cell forward towards the uterus.
  2. At the same time, the fertilized egg cell continues to develop rapidly and splits several times. First of all, into two identical cells. That repeats itself every 12 hoursso that the small embryo already consists of 32 cells three days after fertilization.
  3. About four days after fertilization, the fertilized egg arrives in the uterine cavity.
  4. There the zygote divides into two halves: the outer cells form the placenta, from the interior of the embryo. At this stage, the embryo blastocyst called.
  5. Now the blastocyst is looking for the best place in the endometrium for nidation (implantation) and the egg cell half, from which the placenta develops, connects to the uterus.
  6. If the implantation went well, hormones poured out that tell our body: Watch out, you’re pregnant!

If the blastocyst does not implant despite fertilization, one speaks of one early departure. The egg cell is then passed out with the next menstrual period. Therefore, women usually do not notice the fertilization at all.

Recognize implantation: Typical signs that it worked

Scientifically there is so far no proven signs, which show that implantation was successful. While many women initially do not notice any changes in themselves, others report that they could clearly feel the implantation process. Especially women who plan their desire to have children very well, know their cycle very well or use NFP following symptoms Celebration:

  • implantation pain
    Many women report one drawing in abdomen around the time of implantation. This could be a slight implantation pain. But don’t worry, implantation doesn’t really hurt. Rather, it is the typical abdominal sensation that most women experience from time to time during their cycle, often as the first sign of an approaching period. The implantation pain usually occurs around 6 to 10 days after fertilization.
  • implantation bleeding (implantation bleeding)
    Some women watch a whole weak, light bleeding, which unsettles many couples who want to have children. But don’t worry, this minimal bleeding is completely harmless. The reason are Injuries to the lining of the uterus through implantation. But they are usually so minimal that only a few drops of blood escape. In contrast to the more brownish menstrual bleeding, the implantation bleeding is light red in color.

Nevertheless are neither implantation pain nor implantation bleeding clear indications Make sure that the implantation actually worked, as these symptoms often appear before the period starts. However, if the egg has made itself comfortable in the uterine lining and the hormone production is already in full swing, you may soon notice the first typical signs of pregnancy.

What happens after successful implantation?

If implantation has worked, the hormones will set in HCG and progesterone prepare your body for pregnancy immediately. So, physically, you’re already totally in pregnancy mode before you possibly even realize it. The early placenta cells produce the pregnancy hormone HCG, which signals the ovaries and pituitary gland: Please do not ovulate in the next month. In addition, the ovaries now produce more of the hormone progesterone. This in turn ensures that the uterine lining is not broken down. Already ten to eleven days after the fertilization of the egg cell, the embryo and the mother are connected to each other via blood vessels.

Can I support implantation?

Just as with fertilization there is no panacea, so that implantation really works after ovulation and fertilization. However, you can influence your body positively by being good to yourself. Avoiding stress, less alcohol, no cigarettes and sufficient exercise, healthy eating and taking folic acid are just a few tips that you should consider if you want to have children. Good is what is good for you. Your own well-being has a great influence on your cycle. And the more regular it is, the faster it can get pregnant.

When exactly does pregnancy begin?

Logically, the egg cell must first be fertilized after ovulation so that the desire to have children can be fulfilled. About whether a pregnancy already with fertilization or with implantation begins, one is not quite in agreement. However, implantation in the uterine cavity is essential for an embryo to develop. Arithmetically the 1st week of pregnancy begins even earlier, viz with the 1st day of the last period and lasts until the expected date of birth, approximately 40 weeks.

The signs of pregnancy begin

Many women realize early on that they are pregnant. Especially if you know your body well. It is not uncommon for the typical signs of pregnancy to appear, such as nausea, fatigue or sore breasts. If there is no menstrual period, the nidation of the egg cell in the uterus has most likely worked. But you can only be really sure with one positive pregnancy test or an examination by a doctor.

Bridget

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