How many weeks into pregnancy does estrogen begin to decline?

How many weeks into pregnancy does estrogen begin to decline?

Estrogen is of great significance to women. It is the main hormone in women's bodies and plays a leading role in promoting the development of the female reproductive system and maintaining normal sexual desire and reproductive function. In addition, estrogen also has a good effect in controlling pregnancy and breastfeeding. In this regard, a pregnant woman asked, what is the normal estrogen level at 7 weeks of pregnancy.

During the entire pregnancy process, the value of estrogen is not fixed. Generally, it will show a slight increase during the pregnancy process, and will drop sharply after the labor and delivery of the embryo. In fact, it can be seen that the value of estrogen in early pregnancy is 0-300ng/L, and the value in mid-pregnancy becomes 1000-8000ng/L, and finally reaches 5000-27000ng/L in late pregnancy. Therefore, as long as the estrogen value at 7 weeks of pregnancy is between 0-300ng/L, it is considered normal.

In fact, if the estrogen level is found to be slightly low during pregnancy, pregnant mothers do not need to worry too much. As long as there is no bleeding during pregnancy and the B-ultrasound shows that the baby is developing normally, there will not be a big problem. However, if the estrogen level is too low, it may affect the pregnancy environment and easily lead to the risk of threatened miscarriage. At this time, pregnant mothers need to go to the hospital for examination and diagnosis in time, so that the doctor can supplement estrogen to nourish the fetus according to the physical condition of the pregnant woman.

Generally, doctors prescribe progesterone tablets for pregnant mothers to take orally, or they can be injected with progesterone copper. In addition, they can also be supplemented through diet. It is very good to eat more black bean foods, such as making soy milk with black beans or stewing pork bone soup with black beans, or making astragalus mutton soup or pigeon soup to drink.

In the early stages of pregnancy, female friends will go to the hospital for relevant tests, among which hcg testing is very common. However, with the progress of pregnancy, the hcg value will also change. For many pregnant friends, these knowledge are very unfamiliar. So at how many weeks of pregnancy will hcg begin to decrease?

How many weeks into pregnancy will hcg begin to decrease

HCG generally reaches its highest value in 8-10 weeks, begins to drop rapidly around 12 weeks, and begins to stabilize at 18-20 weeks. Generally, a level of at least 2.5 MoM of human chorionic gonadotropin is associated with Down syndrome. However, the actual human chorionic gonadotropin level in the maternal blood of DS patients is only 1.3 MoM on average, which cannot significantly distinguish DS patients. The human chorionic gonadotropin-related molecules used for DS testing include dispersed b-hCG and high-sugar and high-calorie hCG (H-hCG).

Human chorionic gonadotropin is a glycoprotein metabolized by the trophoblast cells of the embryo and is composed of α and β dimers of glycoprotein. Human chorionic gonadotropin (HCG) αβ, produced by trophoblasts. The glycoprotein growth hormone with a relative molecular mass of 36700, the α subunit is basically similar to FSH (follicle-stimulating hormone), LH (luteinizing hormone) and TSH (thyroid-stimulating hormone) metabolized by the pituitary gland, so they can produce cross-reactions with each other, while the structures of the β subunits are different. β-HCG has a similar structure to β-LH, but some of the last 24 carbohydrates are not present in β-LH.

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