What role do hormones play in pregnancy?

When do pregnancy hormones start to be released?

If the word “hormone” is widely used during pregnancy, it would be wrong to think that hormones only affect pregnant women. Our body is constantly producing hormonesin order to regulate our body and its operation. On the other hand, hormones are mainly produced during pregnancyestrogen and from progesterone, is gaining weight a few days after conception. I’hkgthe pregnancy hormone par excellence, intervenes, for examplefrom the 8th day of pregnancy, decreasing after 3 months.

These proven modifications allow for the baby’s development, preparation for childbirth and even a good establishment of breastfeeding.

The beta-hcg hormone: the dose that confirms pregnancy

The hormone chorionic gonadotropin H.G.Cor pregnancy hormonee, is the first thing that comes into play in pregnancy. Incidentally, it is she that we are trying to discover in pregnancy testswhether in urine or blood to indicate whether you are expecting a child or not.

Visible on the first blood test and in the urine

The HGC hormone is not produced by the woman but through the trophoblastthe future placenta, from the 8th day after conception. His role ? Allow the corpus luteum to maintain its activity to secrete the progesterone it needs correct implantation of the oocyte.

Its rate increases markedly until about the 10th week, and then gradually decreases disappear after 15 weeks. During this time, the “small” pregnancy symptoms, especially nausea and tiredness, will also disappear.

Progesterone, for good implantation

Usually during female cycles that progesterone is the hormone that promotes the transformation of the endometrium already under the influence of estrogens to allow her to properly implant the egg in the uterus. It is produced by the corpus luteum during pregnancy from ovulation and after fertilization it is then the placenta which, with a large-area secretion, takes over Multiply its rate by 1000 !

Benefits and some symptoms

progesterone prepares the uterine lining nesting welcome andembryo installationbut not only: it also has one relaxing soothing effect on the uterine muscles. However, its “relaxing” effects do not stop at the uterus, which is why your bowels can become sluggish and you suffer from constipation and constipation gas and most importantly, why fatigue and drowsiness are common in early pregnancy. Nothing normal anymore!

Estrogens, essential growth hormones

Estrogens are produced by the corpus luteum and then the placenta during pregnancy and act directly on the growth and development of the fetus by stimulating and strengthening cell production all things new. An increase that certainly benefits the baby, but also the mother: estrogens make it possiblesoften the ligaments and the mother’s tendons so they can stretch as the fetus grows.

Estrogens work too on the mammary gland the mother in terms of breastfeeding (swollen and tender breasts) and on her skin Increase in melanin production ; They are the ones that promote the appearance of a pregnancy mask, or quite simply brown line which may appear on the abdomen.

Thyroid hormones, sentinels of the nervous system

It is the mother’s thyroid hormones that act on formation this time until those of the fetus take over around the 20th week. Thyroid hormones are important because they work bone growth And you the nervous system Of the child.

The pregnancy hormone HLP to prepare for breastfeeding

L’lactogenic placental hormoneor HLP, is produced through the placenta with a gradual increase in the volume of the placenta. The HLP hormone rises throughout pregnancy until birth. Nowadays, his role is not well understood. It could induce modification of mammary glands to promote lactation while boosting fetal development.

Oxytocin, which induces labor

Oxytocin intervenes at the end of pregnancy: this hormone, secreted by the hypothalamus and released by the pituitary gland, is the same as that produced during an orgasm! In connection with pregnancy, as the term approaches, its increase in the blood affects induce labor and trigger labor. It is also she who allows after the birth at thewithdraw uterus. It’s still thebonding hormonewhich enables a mother-child bond from the first moments of breastfeeding.

Endorphins to endure the pain

Just as nature does well, your body also has endorphins to offer deal with pain Childbirth (if possible, do not wait for the effect of an epidural anaesthetic!). These pleasure hormones are released by the brain when stressed or in pain. As you work, they allow you to get better withstand contractions getting stronger and stronger and following her instincts in a natural birth.

Prolactin to stimulate milk production

Finally, in the days following childbirth, the pituitary gland also secretes prolactin, a hormone dedicated exclusively to the body milk production and increase. Subsequently, it is the infant’s sucking on the nipple that maintains the continuous secretion of prolactin, and therefore milk.

Did you know already ? Prolactin also has the effect of block ovulation but be careful, this method is reliable only in the first trimester, when amenorrhea is at a rate ofat least 6 active feedings per day of at least 10 minutes, distributed evenly over day and night (mom method). In addition, especially as babies sleep longer and feedings often become less frequent, thatfeeding with milk is not a contraceptive method. In most cases, therefore, she does not forgo the use of effective contraception without an immediate desire to become pregnant!

Are hormones responsible for mood swings?

Real information or urban legends, the pregnant woman would be sensitive or difficult to follow during pregnancy, blame the hormones. Well, yes, it’s a fact, but it’s not a personality problem.

Emotions less well managed

The upheavals and major changes that take place at the beginning of pregnancy with the increase in progesterone and estrogen affect the mood of the expectant mother. A high hormone level is an issue disrupts the function of neurotransmittersthese biochemical messengers regulator of our moods. Add to that the joy of pregnancy or the worry it may bring, and here’s an eventful emotional cocktail for the mom-to-be.

The Blues: When the pregnancy hormones are low

The time after pregnancy is not easy either! In question: this time the decline in estrogen-progestin hormones. It only takes a few hours after birth and the expulsion of the placenta for estrogen and progesterone levels in the blood to drop drastically. Which upsets a young mother who is already very tired. This fall partially explains the feeling of discouragement which can invade the mother and lead her to the baby blues. It is then necessary to wait a few days for normal hormone levels to return to normal.

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