One of the most important hormones in pregnant women is Beta hCG - Human Chorionic Gonadotropin and it is this hormone that determines the positivity of pregnancy test. If the value of this hormone increases daily, the pregnancy goes well.
Depending on the dosage value of the Beta hCG, you can understand to that week of pregnancy we find ourselves and if everything is going well.
Let's try to understand when the values of this hormone are high or low and why.
In this article
- Beta-hCG: valori (mU / ml)
- Beta-hCG: when the values are low
- Beta-hCG: when the values are high
Watch the video with the explanations on Beta-hCG:
Read also: Pregnancy, the values of Beta-HCG
Beta-hCG: valori (mU / ml)
Considering that in the vast majority of cases it is not necessary to carry out a dosage of beta-hCG in the blood, we propose below one table to interpret beta-hCG values which you can find on your blood tests.
As you can see, the range of possible values of beta-hCG from week to week it is very large, and it is precisely for this reason that today this data is considered of little use in the precise dating of a pregnancy.
- Week 1: 12-77
- Week 2: 45-1175
- Week 3: 330-10200
- Week 4: 2160 - 82640
- Week 5: 6225 - 181075
- Week 6: 15600-184000
- Week 7: 15125-199500
- Week 8: 24400-221400
- Week 9: 22075-227000
- Week 10: 21500-188925
- Week 11: 18525-182550
- Week 12: 24650-175775
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Beta-hCG: when the values are low
If a woman is not pregnant, the values of the beta-hCG in the blood are typically less than 5 milliunits per milliliter.
When a pregnancy is in progress, the beta-hCG values are above 5mlU / ml.
But what does it mean that the values obtained are lower than those expected for the week of pregnancy in question, according to the reference table?
Lower than normal beta-hCG values they can mean:
- conception occurred later than expected (it can happen: the value is lower because the embryo is further behind than expected in the development stage)
- threat of miscarriage;
- incomplete abortion;
- fetal death;
- ectopic or extrauterine pregnancy
Warning! Before you worry, consider the wide range of reference values - sometimes the values that may seem low are not really.Read also: How to overcome a miscarriage
Listen to ours too podcasts on Beta-HCG and pregnancy. Answers Tullia Todros, former professor of gynecology and obstetrics at the University of Turin and director of the gynecology and obstetrics department of the Sant'Anna Hospital.
Beta-hCG: when the values are high
If the values of the beta-hCG obtained are higher than those expected for the current week of pregnancy, what can this mean?
Higher than normal beta-hCG values they can mean:
- earlier conception than expected: the value is higher because the embryo is further ahead than expected in development
- twin pregnancy
- presence of a hydatiform mole, or vesicular mola, an abnormal form of pregnancy in which fertilization occurs but vesicles develop in place of the embryo and take on a cluster shape.
- choriocarcinoma, a rare tumor of the uterus
Warning! Before you worry, consider the wide range of reference values - values that may seem low at times really aren't.
Beta-hCG dosage in the blood: when you really need it
The blood test to detect beta-hCG remains useful in some circumstances and that is when the first ultrasound is doubtful, or because nothing is seen, or because what is seen does not correspond to what is expected.
For example, you see an ovarian chamber but you don't see the embryo.
This can occur in three cases:
- The pregnancy is there and is progressing, but it is further behind than expected
In this case, beta-hCG doubles from time to time.
- The pregnancy was there, but there was an abortion
Unfortunately, the pregnancy has stopped, so the betas decrease.
- Pregnancy is extrauterine, that is, localized outside the uterus
If the betas increase but without doubling it is possible that it is an ectopic pregnancy. In this case, which is however very rare, a second ultrasound will confirm that nothing is still seen in the uterus.
Could it be interesting for you:
- Calculate your pregnancy week
Read the article on pregnancy from A to Z
- Calculate the estimated date of delivery online
- Calculate the length of the fetus
- Beta-hCG and pregnancy: values and significance
- Beta-hCG and pregnancy test
- Beta-hCG: how to read the table of values
- Chorionic gonadotropin
Beta-hCG and twins
Un very high value of Beta-hCG it can be an index of one twin pregnancy, but this value alone is not enough to be sure: also in this case an ultrasound is needed.
Hormone control Beta-hCG it is not very indicative to understand if the pregnancy is twins, because its dosage is not precisely linked to the number of fetuses.
A particularly high value of this hormone can in fact be caused by many factors, not only by the presence of multiple embryos in the uterus.
Questions and answers
What is Beta hCG?
Beta-hCG is a fraction of a hormone, chorionic gonadotropin, which is produced by a first sketch of the placenta starting from the moment the embryo nestles in the uterus.
How Much Does The Beta HCG Value Have To Be To Be Pregnant?
Normally, beta hCG values fluctuate between 0-5 mlU / ml of blood. Values higher than the reference ones indicate an ongoing pregnancy.
When do the Beta HCG values decrease?
Beta hCG values continue to increase throughout the first trimester, peaking around the tenth week after the last menstruation. From that point on, they begin to decrease.Read also: Positive pregnancy test: 10 things to do right away
- beta hcg values
- pregnancy test
- weeks 1-13