Hcg: table by week of pregnancy. The norm of hCG during pregnancy

2024 Author: Priscilla Miln | [email protected]. Last modified: 2023-12-16 00:21

Many girls sit in front of the OB/GYN examining their pregnancy history. It is practically all pasted over with the results of urine and blood tests. Everyone wants to understand if everything is fine with the baby? But, alas, all the hieroglyphs, numbers, abbreviations cannot be disassembled by an ordinary person. Leafing through history, almost everyone pays attention to the abbreviation hCG. For many, these letters are of interest. And this is just a hormone that shows pregnancy by weeks.

What does HCG stand for?

After detecting a delay, many girls go to get tested to determine the level of the hormone hCG in the blood. The analysis will show changes even with a delay of only one or two days. HCG is a glycoprotein composed of alpha (denoted TSH, FSH, LH) and beta (hCG).

To determine hormone levels, doctors use a beta subunit test. The pregnancy test also contains this unit, but it is so small that it reacts to the onset of pregnancy after 4-5 weeks.

For convenient use, there is a table of hCG by day. It shows the age of the embryo in relation to the hormone level.

To make sure that the pregnancy is proceeding normally, it is necessary to take tests several times, and the level of hCG should not exceed 2000 mU / ml. Do not forget that one analysis cannot determine pregnancy with an accuracy of up to a week.

HCG norm during pregnancy

If the level of hCG (table by week is presented below) shows less than 25 mU / ml, in this case it is necessary to repeat the tests. It is better to do this after about 3 days.

The hCG table for weeks of pregnancy in different medical centers has a slight difference. Most doctors use the average.

The spread in the norms is quite large. The hCG table by week of pregnancy will relieve the panic of women who, in their analyzes, found deviations in any direction. The table will help determine the level of the hormone from the moment the child is conceived. To do this, subtract two from the order of the obstetric week. For example, a hormone at the 10th obstetric week corresponds to the 8th week from the moment of conception. The hCG-norm table below will become a guide for women. However, please remember that the final decision rests with your doctor.

What affects the change in the hCG hormone

The growth rate of hCG during pregnancy signals to doctors about normal development or lagging behind the norm of development. As a rule, at the 14-18th week, doctors prescribe repeated hormone tests for reinsurance. Since at this time the indicator may indicate the development of pathology in the fetus.

In some cases,determining pregnancy, a test strip, ultrasound and even a blood test can be wrong. Quite often, hCG (table and its unit of measurement) shows a positive result, but there is no pregnancy. Many factors influence this result:

• taking hormonal drugs;
• recently had an abortion or childbirth (in this case, the hormone level may not stabilize yet);
• presence of a tumor from embryonic chorionic villi;
• abnormal pregnancy.

When the level of the hormone hCG is elevated, which does not correspond to the weeks of pregnancy, the reason may be as follows:

• pregnancy does not match the date of conception expected by the doctor;
• multiple pregnancy;
• the initial stages of pregnancy are accompanied by severe toxicosis;
• Chromosomal abnormalities in fetal development;
• maternal diabetes.

If the level of hCG has decreased during the test, the table shows deviations from the norm by more than 50%, in which case the following options are considered:

• mismatch between actual and estimated pregnancy dates;
• there is a threat of termination of pregnancy;
• missed or ectopic pregnancy;
• placental insufficiency;
• more than 41 weeks;
• fetal fading in the last month of pregnancy.

Changes in hCG levels during normal pregnancy

In the absence of various hormonal disruptions in the female body and in accordance with the timingpregnancy will experience an increase in the hormone every 2 or 3 days. The daily hCG table shows an increase in the hormone, so if the indicator has increased by more than 60% in a few days, do not panic. Pregnancy from the 9th obstetric week or the 7th from the moment of conception will show a decrease in the blood level of the hormone.

If a woman has a multiple pregnancy, respectively, and the level of the hormone hCG will increase as many times as the fetus develops.

hcg during miscarriage

Missed pregnancy is when the fetus dies under the influence of various factors. In this case, the level of the hormone rapidly decreases. If there is such a risk, the doctor prescribes tests to track the dynamics of changes in the hCG hormone.

Does the table indicate indicators that are out of the norm? In this case, there is still no place for panic, because the deadline could be set incorrectly. Such cases happen, the doctor additionally prescribes an ultrasound scan, and only after its results can one accurately say about the development of the fetus. There are also cases in which the pregnancy has already stopped, and the hormone levels continue to grow.

HCG levels for twins

Many women, being pregnant, do not even suspect that they have not one baby under their heart, but two. Ultrasound in the early stages may not clearly show the presence of such a pregnancy. In this case, the analysis for the hCG hormone with twins becomes a salvation. The table doubles the figures. However, every pregnancy is different.previous, especially with twins. The value of hCG table for multiple pregnancy shows relative. If the figures are constantly doubling, be 100% sure that you will have two babies.

For complete certainty at an early date, the dynamics of changes in hCG is being studied. The doctor schedules tests every few days. This should not scare a woman. This method of research is the only way to determine at an early stage of multiple pregnancy.

HCG indicator for twins after IVF

The table will show the value of hCG during in vitro fertilization in a modified state, since the indicators will exceed the standard ones. This is due to the fact that on the eve of the procedure, a woman undergoes hormonal therapy, which prepares the body for bearing. During the procedure, several embryos are placed in the uterus at the same time. And in most women, both take root. The indicator of the hCG hormone will help confirm this (with twins, the table shows fairly high numbers).

Why do I need a test to determine hCG? And how to donate blood correctly

When taking a hormone test, a woman can find out about the results of pregnancy after 5-6 days from the moment of conception. This is much more effective than regular rapid tests.

This test will determine a more accurate date of conception. Quite often, a mother cannot accurately name the date of conception, or she calls it, but it is wrong. This is quite important, since the development parameters of the hearth correspond to a certain period. BUTdeviation from the norm can be a signal of complications.

Test indicators make it possible to accurately determine the correct development of the child. A sharp increase in the level of hCG indicates a multiple pregnancy, the presence of diseases in the mother or hereditary in the baby. On the contrary, a decrease in the level can become a signal of fetal fading, developmental delay.

To obtain a more reliable result, it is necessary to correctly test for the hormone. The doctor will tell you all the details. But we must not forget that the tests are taken on an empty stomach. It is advisable to donate blood in the morning, but if this is not possible, you can donate during the day, provided that the woman has not eaten for about 4-6 hours. Blood is taken from a vein.

It is advisable to exclude physical activity the day before the tests. In the case of the use of hormonal drugs, you must inform the doctor, as this affects the accuracy of the analysis.

If you are worried about the test results, do not rush to panic. The doctor will be able to interpret them correctly. If necessary, he will appoint a second test.