I'm currently almost 14 weeks. This is a complicated pregnancy - one that was far from planned and one that will continued to be monitored due to high risk (class D med). At my NT scan, the fluid measurement was 2.5mm. Not great, but from what I understand right at the cut off. I was 12 weeks 3 days, but measured 13 weeks, 1 day. (CRL 69mm) My PAPP-A MoM was fine at 1.58, but my free beta HCG. Hi there, not sure if you've read my post, but my high Beta HCG level was 6.35, this along with an NT measurement of 1.2 gave me an increased risk. Unfortunately, there was a problem with our baby she had diploid triloidy (69 chromosomes in some cells rather than 46). I don't know an awful lot about the field, but had read a lot since my high.
Very High HcG Level. L. LaceyTeal. Nov 14, 2016 at 7:53 AM. At 4w1d my hcG was at 1144, three dats later at 4w4d it almost quadrupled to 4450. I know high hcG levels don't necessarily mean it's twins, but right now I am in shock and I would like to hear if anyone of you had such high levels but is pregnant with a singleton. Reply Beta-hCG (β-hCG) is a test that measures the amount of human chorionic gonadotropin (hCG) in the blood. This hormone is produced as soon as 10 days post-conception and an above-normal level can confirm pregnancy. 1. Aside from this, the beta-hCG test may also be used during evaluations of fertility treatments (a synthetic form of the hormone. Low Papp-A and Free Beta HCG: Hello AllI am 13 weeks pregnant with my second child. I am 27 years old...had NT scan at 12 weeks and got a relatively high measurement of 2.0 mm. Together with the blood tests done at 10 weeks I got 1 in 9945 fir Trisomy 21, 1 in 5119 for Trisomy 18 and 1 in 8983 for Trisomy 13.I was worried because I had low Papp-A (0.563 MoM) and Free Beta HCG (0.338.
Receiver operator characteristics (ROC) curves showed that the highest sensitivity for detection, 71.2 per cent (95 per cent CI 54.7-87.6 per cent), was for depressed PAPP-A levels; the combination of low serum PAPP-A levels, maternal age, and elevated free beta-hCG levels yielded a detection rate of 78.9 per cent (95 per cent CI 64.9-92.8 per cent) of the affected pregnancies at 8-12 weeks' gestation varied from 46% with maternal age and free β-hCG to 89% with maternal age and all three markers (Table 5). Alternatively, at a fixed detection rate of 70%, the false-positive rate varied from 6% with maternal age, free Gestation (week) Mean gestation (week) Median PAPP-A Median free β-hCG n Observed Regressed* Observed Regressed† 10 11 12. It takes around 2 weeks after conception for hCG to be detected in a hCG pregnancy test. Low levels of hCG may be detected in a woman's blood 8-11 days after conception. hCG levels in early pregnancy are at their highest towards the end of the first trimester, before they gradually decline over the rest of the pregnancy. hCG levels can vary.
Some but not all studies find that HCG levels are lower and less predictive of miscarriage after frozen (as opposed to fresh) embryo transfers. In Xue's 2014 study, nearly 100% of pregnancies that made it past 12 weeks had day 12 hCG levels about 50 IU/L, as shown in the table below 16-29. 1,400-53,000. 29-41. 940-60,000. During the first 8 weeks. Trusted Source. of pregnancy, concentrations of hCG in the blood and urine usually double every 24 hours. Levels of the. First trimester combined screening for Down's syndrome now uses sonographically determined nuchal translucency, maternal serum free β-HCG and pregnancy-associated plasma protein-A (PAPP-A) (Wald and Hackshaw, 1997). de Graaf et al. noted a significant increase in free β-HCG in female fetuses (de Graaf et al., 2000)
8-10 weeks of pregnancy. beta-hCG level is assumed to double approximately every ~5 days 4; A pregnancy with vaginal bleeding and a beta-hCG level that is not increasing appropriately (or declining) is assumed to be an inevitable miscarriage 5, although solidity of this idea after 8 weeks and above a level of 5000 mIU/ml has been questioned 6 Low levels of hCG may be detected in your blood around 8 to 11 days after conception. hCG levels are highest towards the end of the first trimester, then gradually decline over the rest of your pregnancy. The average levels of hCG in a pregnant woman's blood are: 3 weeks: 6 - 70 IU/L; 4 weeks: 10 - 750 IU/L; 5 weeks: 200 - 7,100 IU/
.e., milli international units per millilitre, which is a unit to measure hormones). High hCG levels can be found for twins during the early stages for pregnancy. The normal hCG levels for twins is 30% to 50% higher than in single pregnancy- somewhere around 200 to 1750 mIU/ml HCG (Human Chorionic Gonadotropin) is often called the pregnancy hormone because it is made by cells formed in the placenta, which nourishes the egg after it has been fertilized and becomes attached to the uterine wall. Levels can first be detected by a blood test about 11 days after conception and about 12-14 days after conception by a urine test.. 9 - 12 weeks: 25,700 - 288,000 mIU/mL. 13 - 16 weeks: 13,300 - 254,000 mIU/mL. 17 - 24 weeks: 4,060 - 165,400 mIU/mL. 25 - 40 weeks: 3,640 - 117,000 mIU/mL. As you can see, the levels can vary widely between women at any given time point. Although your doctor will be looking for a certain level when you do your first hCG-beta. Beta hCG levels were taken 12 days after an embryo transfer. What does a high beta hCG mean? A high beta hCG could indicate multiples (twins or triplets), which would be confirmed through an ultrasound. One study found that median hCG levels on Day 13 after a fresh embryo transfer were 329 for women with one baby and 544 for women carrying twins HCG is detectable in urine at around 12 to 14 days after conception. In early pregnancy, hCG levels typically double about every two to three days. Levels generally peak at around 8 to 14 weeks after conception. After that they decline somewhat, and usually plateau during the second and third trimester
HCG levels week by week. The levels of HCG rise steadily till about 10-12 weeks of the gestation period after which they form a plateau or decline and this is the reason for the first trimester being a tougher and severe one. These levels keep doubling up every 2-3 days and increase by almost 60% in two days' time. 3 weeks LMP Human chorionic gonadotropin (hCG) levels can have quite a bit of variance at this point. Anything from 18 - 7,340 mIU/ml is considered normal at 5 weeks. Once the levels have reached at least 2,000, some type of development is expected to be seen in the uterus using high-resolution vaginal ultrasound As the levels of PAPP-A and other markers( free beta hCG , AFP) change with gestational age , the median values are taken into consideration . These median values change as per the geographical location of the person. For ex, median values of Caucasians will be deferent from that of Asians and African Americans
The test involves measuring fetal nuchal translucency (NT) thickness and maternal serum levels of free β-hCG and PAPP-A at 10 weeks to 13 weeks 6 days of gestation. Fetal NT was measured according to the established criteria published by the fetal medicine foundation of the United Kingdom There is real science behind it- I think hcg levels are on average 10-14% higher for girls, and PAPP-A levels are 8% higher. AFP results however (at 16weeks) are 10% higher for boys. While the averages are different, if you look at them 1.12 for girls vs .98 for boys or something similar) the difference is TINY and doesn't make up for huge. First trimester maternal levels of free-beta hCG are currently used for screening to detect Down syndrome fetuses and the reported differences in free-beta hCG levels between Down syndrome and controls are considerably larger (cases: median free-beta hCG MoM 1.70 versus controls: median 1.01; P < 0.0001) (Koster et al., 2011). Differences in. Ongoing pregnancy is defined as a single pregnancy and multiple pregnancies, which reached more than a gestational age of 12 weeks. Serum ß-hCG levels measured on the twelfth day after ovum pick up (OPU) and compared between the two groups Twelve days after embryo transfer, the mean levels of β-hCG in ongoing pregnancy group (419.7 ± 232.9. Measurements of free beta hCG and PAPP-A can be used to estimate the risk or probability that the fetus has Down syndrome and this risk can be used to modify the maternal age risk. Choosing, for example, a cut-off risk of 1:250 to define a high-risk group, 5% of women will be considered high-risk and about 60% of Down syndrome pregnancies will.
My hcg levels carrying twins: 12 dpo: 140 hcg. 14 dpo: 356 hcg. 15 dpo: 480 hcg. 18 dpo: 1.280 hcg. 27 dpo: 25.000 hcg . At 5+6 weeks ultrasound we only saw one baby. At 8+1 weeks ultrasound it was clearly two babies : Since it kicks in, and throughout the first trimester of pregnancy, hCG levels rise until they peak and level off at week 12-14. By this time, they can reach up to 200,000 mIU/ml. Below you will find the general hCG reference values in blood, which can help you estimate how many weeks pregnant you are since the date of your last menstrual. This finding suggests that, the free beta-hCG subunit might be superior to intact hCG for Down syndrome detection. Free beta-hCG subunit concentrations average 0.5% of total hCG levels. It has been claimed that the effectiveness of free beta-hCG methodologies is superior to that of total hCG in maternal serum screening (2,5,8,10,11,12) We like to see a beta number roughly double every 48 hours (though it may take up to 72 hours to double). For example, if the first beta hCG number is 24, the second beta number should be in the neighborhood of 40-60. Even with a high first beta number, a failure to double in 48-72 hours is a possible indication that the pregnancy is beginning. In general, hCG usually doubles every 48-72 hours very early in pregnancy and every 3-4 days later on until about 9-10 weeks of the pregnancy when it levels off. Consequently, there is no single normal hCG level during early pregnancy. There are wide ranges of what constitutes normal levels so consulting your doctor on your specific situation.
. Pregnancy weeks/days are counted from last menstrual period. Average: Average value based on submitted results Max: Maximum value recorded by a member Min: Minimum value recorded by a member Count: Number of values recorded in total for each day Click to learn more about the Pregnancy Hormone - hCG and Beta hCG blood test The assays detect hCG levels typically starting at 20 to 50 (reportedly as low as 6.3 to 12.5) mIU/mL, corresponding to levels at approximately 4 weeks post-conception. Serum assays can measure beta-hCG as low as 1 to 2 mIU/mL
The level of hCG hormone in complete molar pregnancy is greater than 100,000 mIU/ml. However, it should be noted that all the molar pregnancies do not have a high level of hCG hormone and also all the pregnancies with a high level of hCG hormone are not molar pregnancy. High level of hCG hormone may be due to other reasons. hCG Hormone The human pregnancy hormone, human chorionic gonadotropin (HCG) is first found in a pregnant woman's blood as early as 7 to 8 days after conception. As a pregnancy grows, HCG increases. Measurements of HCG levels can be useful during the early weeks before the fetal heartbeat is seen on ultrasound, usually around 6-7 weeks after last. This trend continues until 8-10 weeks after implantation, when hCG levels peak at around 90,000-100,000 mIU/mL. Then hCG starts plateauing - probably because the placenta takes over estrogen and. hCG begins to be produced around the time of implantation and enters maternal circulation. 5% of women have detectable hCG levels right after implantation but the majority will show positive levels by 11 to 12 days after conception. hCG levels rise during the first 6 to 12 weeks of pregnancy then decline slowly during the second and third trimesters Normal beta hcg levels will double approximately every 2-3 days. Typically, rising levels of hCG signal a viable pregnancy. Eventually, this rapid influx of hormones tapers off and stabilizes around 11 weeks. Your body continues to produce the hormone throughout the pregnancy, but the levels typically decrease into the third trimester
They test early, so a low score is likely. But what matters is how HCG levels rise. 85 per cent of viable pregnancies double as they should. 4. Plan your scan. The best way to check on your pregnancy is to have an ultrasound scan. By 6.5 weeks, your HCG levels should be at least 2,000 mIU/ml - and probably higher Normal hCG levels in pregnancy vary, but when women test above 25 mIU/mL, they're pregnant. hCG levels can reach a height of nearly 300,000 mIU/mL by 9-12 weeks. Low levels do not necessarily mean an unhealthy pregnancy, but hCG levels can be rechecked every 48 to 72 hours My betas were crazy high. I was tracking them on sites and they were always off the charts. Also a PGS normal embryo. By the time it came around to do my second trimester screen my hcg was low in the 5th%, a second test (MaterniT21) confirmed the fetus still has the correct number of chromosomes
Low levels of hCG may be detected in your blood around 8 to 11 days after conception. hCG levels are highest towards the end of the first trimester, then gradually decline over the rest of your pregnancy. The average levels of hCG in a pregnant woman's blood are: 3 weeks: 6 - 70 IU/L. 4 weeks: 10 - 750 IU/L. 5 weeks: 200 - 7,100 IU/L A sample of your blood is taken between 10 and 13 weeks of pregnancy. At the same time, an ultrasound scan is performed. Substances in your blood which are markers of Down syndrome and a specific ultrasound marker will be measured. The blood markers are pregnancy-associated plasma protein-A (PAPP-A) and human chorionic gonadotropin (free beta-hCG) PAPP-A, free beta-hCG and hCG levels tend to be about 20% lower and inhibin levels about 60% higher in women who smoke. The serum marker levels are raised in twin pregnancies. Screening in twin pregnancies poses a difficulty because of the possibility that one fetus may be affected and the other may not My hCG level was on the lower end for someone 4 to 5 weeks along, but it was still within the ridiculously large normal range of 5 (the low end) at 4 weeks to 7,340 (the high end) for 5 weeks. Abdominal cramps could mean that I was experiencing a dangerous complication, or that my uterus is expanding
HCG levels at 6 weeks pregnant can be as low as 245 and could be up to 81000 miu/l at 6 weeks LMP/ 28DPO, which is the highest reported value for hCG hormone for singleton pregnancy in this study. hcg levels for twins 6 weeks LMP/28DPO has the lowest value of 373 miu/l, while the highest hCG hormone value after 6 weeks gestation is 203398 miu/l. .com. However, expected ranges may vary somewhat from one testing laboratory to another. If you're having more than one baby, your HCG level will often be higher than the usual.
The influence of fetal sex in screening for trisomy 21 by fetal nuchal translucency, maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation. Prenat Diagn 2000;( 20): 673-675 When two tests are performedduring a pregnancy evaluation, they give a conclusive trend of the hCG levels. The following table shows the normal ranges of hCG: Week from the Last Menstrual Period or Other Situations. Number of hCG in mIU/ml. 3 weeks. 5 - 50 mIU/ml. 4 weeks. 5 - 426 mIU/ml. 5 weeks hCG levels usually consistently rise until around week 10-12 of your pregnancy, when the levels plateau or even decrease. This is the reason why pregnancy symptoms can be greater in the first. High or low hCG levels could still indicate a normal pregnancy. Doctors can, however, gain information from looking at trends. A normal pregnancy has hCG levels that double every 48 hours, and hCG.
Boys and girls produced statistically significant differences in the levels of HCG in the blood, with female embryos leading to levels 18.5 per cent higher, on average The serial measurement of serum hCG concentrations is an important clinical tool used to differentiate normal from abnormal pregnancies. At hCG values below which ultrasonography can be diagnostic, the comparison of a patient's hCG dynamics to those of established expected curves of rise or fall can aid the clinician in determining when to follow expectantly and when to intervene Here is some info I gathered for you on americanpregnancy.org Guideline of women's HCG levels during pregnancy: 3 weeks LMP: 5 - 50 mIU/ml 4 weeks LMP: 5 - 426 mIU/ml 5 weeks LMP: 18 - 7,340 mIU/ml 6 weeks LMP: 1,080 - 56,500 mIU/ml 7 - 8 weeks LMP: 7, 650 - 229,000 mIU/ml 9 - 12 weeks LMP: 25,700 - 288,000 mIU/ml 13 - 16 weeks LMP: 13,300 - 254,000 mIU/ml 17 - 24 weeks LMP: 4,060 - 165,400. The chart shows an average level range for each week dated from the first day of the last menstrual period (LMP). hCG Levels During Pregnancy. (from last menstrual period) Women who are not pregnant: <5.0 mIU/ml. hCG levels at 3 weeks: 5 - 50 mIU/ml. hCG levels at 4 weeks: 5 - 426 mIU/ml. hCG levels at 5 weeks: 18 - 7,340 mIU/ml
Assays that detect both intact hCG and free beta-hCG, including this assay, tend to be more sensitive in detecting hCG-producing tumors. With successful treatment of hCG-producing tumors, hCG levels should fall with a half-life of 24 to 36 hours, and eventually return to the reference range If the hCG level is this high and no sac is visible in the uterus, ectopic pregnancy is suspected. Quantitation of serum hCG levels in paired specimens drawn 48 hours apart can also be used to help diagnose ectopic pregnancy. Women with uncomplicated pregnancies increase their serum hCG levels at least 1.6 fold during this interval The most sensitive, accurate and reliable pregnancy test is a blood test for the presence of beta HCG , often just called beta. The HCG is produced by the embryo, and is the embryo's signal to the mother that pregnancy has occurred. Beta HCG levels vary according to the gestational age. In a non-pregnant woman, they are less than 10 mIU/ml. They are typically about 100 mIU/ml 14 days after. The human chorionic gonadotropin (hCG) test is done to check for the hormone hCG in blood or urine. Some hCG tests measure the exact amount. Some just check to see if the hormone is present. HCG is made by the placenta during pregnancy. The test can be used to see if a woman is pregnant. HCG can be found in the blood.. My first beta Hcg level (around 4 weeks gestation) was 481. I went for my first US yesterday, and I am 7w3d along. My Dr. once again mentioned that he was thinking twins b/c of my Hcg level being.
High free beta Hcg levels @ first trimester screening: Hey Beautiful mom's! This is my third pregnancy at the age of 31. I just had my first screening and it came back with a great ultrasound results with no concerns on how baby is developing. I did however receiev abnormal blood work. HCG levels - 3.4 MoN Papp-a. - 0.4 I should add I am automatically high risk due to an. Found out not long ago that my free beta hcg levels were in the 99th percentile, papp A was 5th percentile - the combination of these two things (despite a nasal bone being present and a normal nuchal fold) gave us a 1 in 30 chance of Trisomy 21. We went on to have a CVS and the cell free DNA testing done
Subject: First trimester screening results: elevated free beta HCG. Anonymous. Advice desperately needed. Last week, at 13 weeks exactly, I went in for my 1st trimester screening. The NT scan came back clear (but the doctor did mention it was in the higher end of the normal range at 2.4 mm). Yesterday I received the results of the blood test The β subunit of human chorionic gonadotropin (β-hCG) can be detected in the plasma of a pregnant woman as early as eight days after ovulation.9 Quantitative β-hCG levels can provide useful. Generally done between 15 and 20 weeks, these tests check the levels of three or four substances in a pregnant woman's blood. The triple screen checks alpha-fetoprotein (AFP), beta human chorionic gonadotropin (beta-hCG), and a type of estrogen (unconjugated estriol, or uE3) Extremely high Beta HCG 13dp5dt and very worried - posted in Ask the RE: On October 6, I had a transfer of a single 5-day blastocyst rated 5BA. My first beta HCG blood test was this Monday, October 19, 13 days post transfer. The level was 2,442! I am very worried that this is far too high. This level is literally off all the charts I have seen
McChesney R, Wilcox AJ, O'Connor JF, et al. Intact HCG, free HCG beta subunit and HCG beta core fragment: longitudinal patterns in urine during early pregnancy. Hum Reprod 2005; 20:928. Korhonen J, Alfthan H, Ylöstalo P, et al. Disappearance of human chorionic gonadotropin and its alpha- and beta-subunits after term pregnancy At around 11 weeks, the doubling time slows, and levels generally peak at 14 weeks. After this, you can expect hCG levels to decline. This shows generally accepted doubling times for a given base level of hCG. hCG under 1200 mIU/ml: 30 - 72 hours. hCG between 1200 -6000: 72 - 96 hours. hCG over 6000: over 96 hours .medical investigation on the part of the doctoro The normal HCG levels at 5 weeks pregnant range between 18 and 7,340 mIU per millilitere As one can see, this is a very wide range of HCG levels at 5 weeks pregnantn This is because the processes that increase the level of HCG in the blood tend to occur rapidlyl The exact date of conception in most pregnancies cannot be properly estimatede This.
Hcg levels too high at 12 weeks? Down syndrome testing. Netmums-to-be. 156bpm girl or boy? Victoria H(602) 14/02/2013 at 5:35 pm. I went a bit mad when testing but they were all negative (tested too early) I tested with a clearblue digital test when due on but still negative. I waited another a week but had bleeding and it was positive so wasn. Beta hCG database, levels chart, scatter plot and doubling time calculator by days after ovulation, IVF embryo transfer and missed period in early pregnancy. Posted on 2014-09-24 2018-05-28 by wantbaby.r At 4 weeks' gestation (18-22 d postconception), the dimer and beta subunit hCG doubling times are approximately 2.2 days (standard deviation ± 0.8 d) and fall to 3.5 days (standard deviation ± 1.2 d) by 9 weeks' gestation. levels peak at 10-12 weeks' gestation and then begin to decline rapidly until another, more gradual rise begins at 22.
The result for that was a beta of 664. If I divide it in half backward every 48 hours, that would have put me at around an HCG of 50-60 on 14dpo. I'm now 25 weeks pregnant. As Sophie mentioned, it's not about one single value, but instead how it progresses (doubles) over a certain span of time During a healthy pregnancy, hCG levels will continue to rise on their own through about the 12th week before starting to naturally decline. As long as your levels are trending upwards, you shouldn't worry about trying to make them even higher Low and High Levels of the Pregnancy Hormone. As mentioned above, after 10-12 weeks, the HCG level starts to decline. Some abnormal outcomes may be a result of too low or high HCG levels. A low level of the HCG hormone can signify: Miscarriage ; Blighted ovum; Ectopic pregnancy; On the other hand, a high hCG level can define: Molar pregnanc The presence of more than 5 IU of beta hCG per ml of blood is an indication of embryo implantation. With typical IVF cases, the beta hCG test is done at least twice to confirm a pregnancy. These are done at least 2-4 days apart. The initial rise in the hormone levels between these two tests may be slow Ultrasound Obstet Gynecol 2016; 47: 762-767 Published online 2 May 2016 in Wiley Online Library (wileyonlinelibrary.com). DOI: 10.1002/uog.15849 Maternal serum PAPP-A and free β-hCG at 12, 22 and 32 weeks' gestation in screening for pre-eclampsi
HCG - Pregnancy, Serum, Quantitative. 3 mL whole blood in light green top tube or TWO Microtainer ® devices. 24 hrs/day, 7 days a week, including holidays. Weeks of gestation Expected range mIU/mL 3 weeks 5 - 72 4 weeks 10 - 708 5 weeks 217 - 8,245 6 weeks 152 - 32,177 7 weeks 4,059 - 153,767 8 weeks 31,366 - 149,094 9 weeks 59,109 - 135,901. High hCG levels 12 days after embryo transfer. 14. Menu . Search. FERTILITY PROBLEMS. Female Infertility It was a day 5 blastocyst. I just had my first HCG beta done 12 days after transfer and it is 203. Is it normal for the level to be this high or is it possible that I am carrying twins? 07/06/2018 at 9:17 pm 3 weeks post medical. HCG appears in the blood and urine of pregnant women as early as 10 days after conception. Quantitative HCG measurement helps determine the exact age of the fetus. It can also assist in the diagnosis of abnormal pregnancies, such as ectopic pregnancies, molar pregnancies, and possible miscarriages. It is also used as part of a screening test. Levels are high during the first trimester of pregnancy, decrease to lower levels during the second trimester, and increase again in the third trimester. Noble P, et al. Screening for trisomy 18 by fetal nuchal translucency and maternal serum free beta-hCG and PAPP-A at 10-14 weeks of gestation. Prenat Diagn. 1999;19(11):1035-1042.
Levels of human chorionic gonadotropin (hCG) increase during the first trimester, peaking between 7 and 13 weeks. hCG has mild TSH-like activity, leading to slightly high free T4 during early. When hCG levels start to taper off around 12 to 16 weeks, most women notice their nausea starts to reduce. Other hormones may play a role in morning sickness as well. Understanding the Levels of HCG. In most pregnancies, hCG levels double every 48 to 72 hours. Your levels will peak between eight and 11 weeks of pregnancy Recent studies showed a significant increase in the level of free HCG-beta in trisomy 21 List of Publications using ADI HCG/Free-HCG ELISA kits cases as compared with controls. Hence, it has been suggested that free Beta-HCG subunit assay in combination of maternal serum AFP could be effective in a screening for Ivnitski D 2004 Analytica.
Prenat. Diagn. 19: 1035-1042 (1999) Screening for Trisomy 18 by Fetal Nuchal Translucency and Maternal Serum Free -hCG and PAPP-A at 10-14 Weeks of Gestation Natasha Tul 1, Kevin Spencer2*, Penelope Noble 1, Christine Chan and Kypros Nicolaides 1Harris Birthright Centre for Fetal Medicine, King's College Hospital, London, U.K. 2Endocrine Unit, Clinical Biochemistry Department, Harold. Human chorionic gonadotropin (hCG) is a hormone that is produced by the placenta, or, as it is also called, the place of the fetus during pregnancy. (the analysis is given on average at 2, 4, 7, 9, 12, 14, 17, 20 weeks). and the chances of its successful completion are quite high. A low pregnancy hormone level (less than 25 mIU / L. Levels of hCG typically increase in the first trimester of a healthy pregnancy. Levels of hCG usually increase during the first trimester, peak by weeks 8 to 11, and then decline to a steady level.