Hcg levels 6 weeks twins

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 to 11 days after conception. Sometimes with multiples, there is a higher, early trend in hCG levels. Twin and multiple pregnancies may also have 30 to 50% higher hCG levels than for one baby.

Feb 12, 2022 at 6:49 AM. I'm looking for some reassurance to see if anyone has ever experienced this. I went in at 5w6d for a scan to rule out an ectopic. Baby was in my uterus but we didn't see a heartbeat yet. The doctor decided to order hcg and indicated something around 10000 would be fine but if it was 20000, that could be cause for ...Studies have shown that pregnant people expecting twins or multiples may have higher hCG levels than those experiencing a singleton pregnancy. That said, hCG levels vary from person to person and pregnancy to pregnancy, so hCG levels are not definitive to determine a twin pregnancy. ... After about 12 weeks of pregnancy, this …The typical hCG level around four weeks of pregnancy is around 140 mIU/ml 5, so a high hCG level can be generally considered to mean you are pregnant. However, there are some very rare medical conditions that can cause high hCG levels. If you get a positive result on a pregnancy test and you haven't had unprotected sex since your last ...Mar 17, 2024 · Studies have verified that the majority of healthy pregnancies feature hCG levels that double every 48-72 hours (yes, 72 hours is also fine!) up to the first 6 weeks of pregnancy. After that, doubling time tends to increase to every 3-4 days. When HCG levels fail to double or stop rising, it can be a sign that something is wrong. Goodluck ! Mine was 76,000 this Monday at 6+3 and I've only got one little Bub growing in there :) At 6w4d my hcg was 56782 and my ultrasound showed 1 baby. I had my first test a couple days ago when I was 5 weeks 4 days and mine was 80,000. Found out it's twins.During week 4 of a twin pregnancy, blastocysts will implant in the uterine wall and form into embryos, and their body parts will begin to form. Placentas, amniotic sacs, and yolk sacs will be forming at this time to support your babies, as well. Medically reviewed by Layan Alrahmani, M.D., ob-gyn, MFM. Written by Kandis Lake, R.N. | Nov …Hcg levels over 77,000 at 6 weeks 4 days.... a. adubou08. Posted 03-12-10. As anyone ever gotten numbers like these? They seem high to me.Woman has to urinate pee bathroom emergency pregnant with twins 6. Frequent urination. Just like with a singleton pregnancy, carrying twins can cause increased urination due to rising levels of hCG. Since twin pregnancy hCG levels rise faster than those in singleton pregnancies, the increased need to go to the bathroom …

Reference Ranges for HCG Levels During Pregnancy; Weeks From Last Menstrual Period (LMP) Expected hCG Range (mIU/mL) 3 weeks: 5–72: 4 weeks: 10–708: 5 weeks: 217–8,245: 6 weeks:...On a very serious note, another cause of high levels of hCG is a molar pregnancy. This pregnancy complication happens in about 1 in every 1,000 pregnancies. A molar pregnancy happens when the ...Vanishing twin syndrome is a type of miscarriage. When more than one embryo appears to be developing in your uterus, you might be told that you're carrying twins — or in some cases, triplets ...5 Weeks Pregnant with hCG levels in the 5000 range. n. Nickabee24. Posted 09-11-09. After trying to get pregnant for 14 months, I took a hpt last week and it came back positive. I then went to my ...Signs of Having Twins at 5 Weeks. Higher-than-normal levels of hCG may indicate that you're pregnant with multiples, but you'll need to wait until your ultrasound for 100% certainty. Common early pregnancy symptoms of fatigue, frequent urination, breast tenderness, and food cravings are extra EXTRA — your symptoms are WAY more severe than ...Mar 1, 2011 · hCG Level of 60,000 at 6 weeks. l. lynn_s. Posted 03-01-11. Hi, I had a blood test today which showed very high levels of hCG, the doctor advised this could be twins and I am due for an u/s ... Woman has to urinate pee bathroom emergency pregnant with twins 6. Frequent urination. Just like with a singleton pregnancy, carrying twins can cause increased urination due to rising levels of hCG. Since twin pregnancy hCG levels rise faster than those in singleton pregnancies, the increased need to go to the bathroom …

We measured serum β-hCG at 13 days after embryo transfer as well as samples of β-hCG and estradiol at 8-9 weeks+6 days. Results No significant differences existed between singletons and twins in respect to demographic and cycle characteristics. β-hCG and estradiol were all significantly higher in twins (P<0.05).Hcg level with twins. m. Manders853. Posted 09-30-19. Hey ladies. Just wondering what everyone's hcg levels were at 6 weeks with twins. Original poster's comments (1) 0.5 Weeks Pregnant with hCG levels in the 5000 range. n. Nickabee24. Posted 09-11-09. After trying to get pregnant for 14 months, I took a hpt last week and it came back positive. I then went to my ...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 to 11 days after conception. Sometimes with multiples, there is a higher, early trend in hCG levels. Twin and multiple pregnancies may also have 30 to 50% higher hCG levels than for one baby.

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my numbers were relatively low, like 700s and 2500s in my 4th week, I didn't have them drawn any further, but I'm having twins! as pp's have said, the only way to tell 100% is an ultrasound. M @userdeletedalias53277667,Super-high HCG levels at 6 weeks. t. tandemom. Oct 16, 2014 at 3:49 PM. So, I had my first appointment yesterday at exactly six weeks. No ultrasound, just blood work, pee in a cup, etc. I got my HCG levels back, and they were 57,670! I looked up averages, and the average for 6w is 16,870. This is way over the high end of the range.On 21st aug my hcg was 31 , on 23rd Aug HCg was 51.5 and on 27th August hcg level is 473.98. On 2nd Sep hcg was 2576. I have gone through Frozen embroy transfer on 12th august 2023. Two 4AA grade embroy transferred. Please let me know if these HCG values are ok and also is there chances of twins in this.While a gestational sac is sometimes seen as early as during the 4th week of gestation, it may not be seen until the end of the 5th week, when the serum HCG levels have risen to 1000-1500 mIU. Gestational sac size may be determined by measuring the largest diameter, or the mean of three diameters.The ratios of AFP levels in twins to those in singletons were from 1.91 to 2.61, the ratios of free-β-hCG levels were from 1.79 to 2.64, and uE 3 levels were from 1.47 to 1.74 during 15-20 weeks of gestation. Xie et al also reported a similar conclusion. Notably, there were significant differences of 2-fold in several gestational weeks ...

Advertisement Consider the following story: My identical twin sister, nicknamed "Fred," was hiking in Sabino Canyon while visiting our aunt for two weeks in Arizona. In the middle ...Day beds are versatile furniture pieces that don’t have to be confined to a bedroom. Here's how to build one. Expert Advice On Improving Your Home Videos Latest View All Guides Lat...Week of pregnancy. hCG levels in blood (mIU/ml) Men and non-pregnant women <5. 1 week. 5–50. 2 weeks. 50–500. 3 weeks. 100–10,000. 4 weeks. 1080–30,000. 6–8 weeks. 3500–115,000. ... While pregnant with twins, your hCG levels can be on the higher end of the standard hCG range. The levels shouldn't permanently exceed the …HCG levels rise quickly and exponentially, usually doubling every 2days 3,4 in the first weeks before reaching a steady level (plateau) around week 10; after which time they slowly decline. 4. What should hCG levels be at four weeks of pregnancy? On average, the hCG level at four weeks of pregnancy, is around 140 mIU/ml 5. However, the only way ...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 to 11 days after conception. Sometimes with multiples, there is a higher, early trend in hCG levels. Twin and multiple pregnancies may also have 30 to 50% higher hCG levels than for one baby.Pregnant women, about 13 to 16 weeks after the LMP. 9,000 to 210,000 U/L. Pregnant women, about 16 to 29 weeks after the LMP. 1,400 to 53,000 U/L. Pregnant women, about 29 to 41 weeks after the LMP. 940 to 60,000 U/L. For more information check here. Remember, these numbers are a guide. Every woman and her pregnancy are unique …Urine pregnancy tests can detect hCG levels when they reach 20 to 50 milli-international units/mL, while blood tests are positive at 5 milli-international units/mL, Lamppa says. That typically translates to getting a positive urine pregnancy test around the time your period is due."During 4 to 6 weeks of the pregnancy, the hCG level should double every 48 hours. If it does not happen, then recheck it after another two days as it can show a failing pregnancy or a PUO (pregnancy of unknown origin)" ... What hCG Level Indicates Twins? For singletons, the hCG range is 5 - 397, and for twins, the range is 48 - 683 ...Apr 30, 2021 · 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 for twins babies. The Average pregnancy hormone test result after 6 weeks of gestational age is 11073 for singleton, and 23323 miu/l for twins.

Outlook. Human chorionic gonadotropin, or hCG, is known as the "pregnancy hormone.". HCG is made by the placenta and is tied to fetal growth. Small levels of hCG can be detected in the urine ...

So you'd think a pregnancy test would flash "+" even more easily. But a very high hCG level can actually lead to an inaccurate result. When you take a home pregnancy test, it's looking for hCG levels of at least 20 milli-international units per milliliter (mUI/mL), which most women have in their urine around weeks 4 or 5 in a singleton pregnancy.Updated on October 19, 2022. Medically reviewed by Rachel Gurevich, RN. If your hCG level is high during pregnancy, this could be due to a variety of factors. During pregnancy, your body produces the hormone human chorionic gonadotropin (hCG). It can be detected via a blood or urine test approximately 12 to 15 days after conception.An hCG level of less than 5 mIU/mL is considered negative for pregnancy, and anything above 25 mIU/mL is considered positive for pregnancy. An hCG level between 6 and 24 mIU/mL is considered a grey area, and you’ll likely need to be retested to see if your levels rise to confirm a pregnancy. The hCG hormone is measured in milli-international ...Twin pregnancies "can have 30% to 50% higher hCG levels than singleton pregnancies at the same time in early pregnancy," Dr. Garg says. However, "detection of high hCG levels alone can't ...E. Ellealyse. Nov 30, 2023 at 9:48 AM. HCG levels can really be all over the place and an ultrasound is the only way to know for sure if it's multiples, but I understand being curious! Here were my levels with my twin pregnancy (currently 35 weeks): 4/29 (Sat): 1921 (4 weeks 4 days) 5/2 (Tues): 5687 (5 weeks 0 days)Jan 27, 2016 · Hcg levels 32,000 at 6 weeks - twins?? j. Jess_Vogue. Posted 27-01-16. Could it be twins? Please share your hcg levels at 6 weeks and if you've got twins or singleton. Original poster's comments (1) “During 4 to 6 weeks of the pregnancy, the hCG level should double every 48 hours. If it does not happen, then recheck it after another two days as it can show a failing pregnancy or a PUO (pregnancy of unknown origin)” ... What hCG Level Indicates Twins? For singletons, the hCG range is 5 – 397, and for twins, the range is 48 – 683 ...Hoping everything turns out well for you and the high hcg is caused by some other factor. Maybe your body just naturally has a higher level, it varies greatly between women. Another possible reasoning for higher than normal hcg is a multiples pregnancy. Hcg goes 30%-50% higher than normal for twin and higher pregnancies. Ok_Spite6846.

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There is a correlation between high HCG and twins but it is not 100%, meaning you can have really high HCG and not have twins as well. My friend's was over 800 at 10dp5dt and she is currently pregnant with just one baby (and only transferred one). An ultrasound is the only way.What should my hCG be at 6 weeks pregnant with twins? (Spoiler alert: While higher levels of hCG can indicate twin pregnancy, it is by no means definitive. ... weeks the HCG level is among 10-70 3-4 weeks the HCG level is among 10-750 4-5 weeks the HCG level is among 200-7000 5-6 weeks the HCG level is among 200-32,000 ;Those of you with twins - if you had an HCG draw later in pregnancy (like 6-8 weeks), what were your numbers like?? 19 Similar Discussions Found . 23 Comments. Oldest First. R. ... If you're wanting twins I wouldn't look into that and get your hopes up, just wait it out until you get to see for sure (I know that's tough). Your mom being a ...The rate of rise for hCG in pregnancy is that it nearly doubles about every 48 hours in the first 30 days after implantation, about 7 weeks gestation, though this can vary. After that, the rate of rise begins to slow. hCG levels peak at about 8-10 weeks, then slowly decrease until they level out at about 20 weeks and stay constant for the ...Hcg levels chart pregnancy level twins early weeks days test high beta results normal babycenter range gif low info whenHcg levels pregnancy twin chart week early multiples twins normal test low table multiple high per beyond signs study sign Hcg levels twins (hcg levels chart for twins at weeks 3,4,5,6,7,8,10Hcg twins levels chart babycenter ...It's too early. The fetal pole becomes visible somewhere between 5 1/2 and 6 1/2 weeks of gestational age (typically determined based on the date of the last normal menstrual period). Any small ...Having high levels of hCG, a pregnancy hormone, or alpha-fetoprotein (AFP), a protein made by the fetus's liver. Hearing more than one heartbeat on a fetal Doppler. ... A full-term pregnancy is 37 weeks. Twin pregnancies rarely last this long, with the typical twin pregnancy lasting 35 to 36 weeks. Many people go into labor sooner.Your Twin Babies at 6 Weeks Pregnant. Your babies are twice as big as they were last week, and by week 7 they'll be twice as big again! Right now, the developing embryos are about a quarter of an inch long, or the size of a sweet pea. This is the week where the head starts to develop, with dark spots where your babies beautiful eyes will form ... ….

However, some mothers experience symptoms similar to miscarriage, including: Mild cramping. Vaginal bleeding. Pelvic pain. Decreasing hormone levels (hCG, as detected by blood tests) Trusted Source Fertility and Sterility Early Beta-Human Chorionic Gonadotropin Trends in Vanishing Twin Pregnancies See All Sources. [2]HCG production starts right after implantation, but the levels are very low at first. They increase rapidly in the first few weeks, and home pregnancy tests can typically detect hCG in urine once it reaches 25 mIU/mL or higher (although some can detect in at lower levels). This is generally around 12 to 14 days after conception or a couple of days before your expected period.Beta-hCG is a shorthand term for a blood test used to measure hCG levels in early pregnancy. HCG is a hormone that is present in pregnancy. ... 6 Weeks 152 to 32,177 mIU/ml 7 Weeks 4,059 to 153,767 mIU/ml 8 Weeks 31,366 to 149,094 mIU/ml ... twins or triplets could be present. multiples are not uncommon in those who have …Dec 12, 2023 · Note: These are average ranges, and individual variations may occur. Always consult with your healthcare provider for personalized guidance. Interpreting the Chart. 3-4 Weeks: Early on, hCG levels are in the range of 5-426 mIU/mL. Signs of Having Twins at 5 Weeks. Higher-than-normal levels of hCG may indicate that you’re pregnant with multiples, but you’ll need to wait until your ultrasound for 100% certainty. Common early pregnancy symptoms of fatigue, frequent urination, breast tenderness, and food cravings are extra EXTRA — your symptoms are WAY more severe than ... Human Chorionic Gonadotropin. Human chorionic gonadotropin (hCG) is a hormone produced by the placenta during pregnancy. It helps thicken a person’s uterine lining to support a growing embryo and tells the body to stop menstruation. HCG levels rise after conception and continue to rise until about 10 weeks in pregnancy. Let's get technical with this week's Crowdhacker. If you're a sysadmin or just a network enthusiast, you might know something about virtualization. But what's the difference betwee...Of these, 73% were singleton, 24% twin and 3% were triplet. Day 3 transfers produced higher hCG levels for both singleton and twin pregnancies compared with day 5 transfers (see Table above). It is possible that the difference in hCG levels was due to early post-implantation losses.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. ... 6 weeks: 152 - 32,177 mIU/mL. 7 weeks: 4,059 - 153,767 mIU/mL. Hcg levels 6 weeks twins, Urine pregnancy tests can detect hCG levels when they reach 20 to 50 milli-international units/mL, while blood tests are positive at 5 milli-international units/mL, Lamppa says. That typically translates to getting a positive urine pregnancy test around the time your period is due., Hcg level with twins. m. Manders853. Posted 09-30-19. Hey ladies. Just wondering what everyone's hcg levels were at 6 weeks with twins. Original poster's comments (1) 0., Went to the doctor and have had several tests for hcg levels and my hcg level for the first visit was 508 two days later it was 1422 then 4 days later it was 12,250 and the doctor scheduled an ultrasound and it confirmed I was only 5 weeks 3 days and he thinks it may be twins. I go back this Friday for another v____al ultrasound., HCG Levels Twins Chart By Week. Download this HCG Levels Twins Chart By Week Design in PDF Format. Easily Editable, Printable, Downloadable. Download a copy of this template to create HCG reference charts in the most convenient way possible. This template outlines figures for estimating the probability of twin or singleton pregnancies., Options. rshamos member. May 2014. High hcg is not a guarantee of multiples, but it can be an indicator. At the fertility clinic, we all got nervous when the first beta was over ~300ish. It sometimes meant multiples. Especially if it tripled instead of doubled. But orhertimes it was just a strong singleton., Can you tell me what your HCG levels were at 8-9 weeks with twins? I just got my results from last week, which would have been at 8 weeks 4 days, and my levels were over 288,000. ... I'm pregnant with a singleton and my levels at 6 weeks exactly were 42,000. They said this was really high and thought multiples but nope! You never know until the ..., first detectable level 4 - 6 weeks pregnancy: 100 - 10,000 6 - 8 weeks pregnancy: 5000 - 150,000 8 - 10 ... hCG level doubles every 2 days in early pregnancy. hCG values > 200,000 are unusual in singleton pregnancies. Values higher than this occur in twin pregnancies, molar pregnancies, and trophoblastic tumours. ..., By week six or seven, for example—about halfway through your first trimester—it may take about 3.5 days. After your hCG level passes 6,000 mIU/ml, it may take more than 4 days to double. You can usually expect your hCG level to stop rising between week eight and week 11 of pregnancy. That is the time period during which the hormone tends to ..., I am 5 weeks pregant and had HCG levels drawn at 2 weeks. I started having some slight spotting. My first numbers were 149 and then 399 two days later and then three days later they jumped to 4244. My numbers a few days later jumped to 13,338. Today my numbers are only 25,254. There was only a two day difference between these last two numbers., Hoping everything turns out well for you and the high hcg is caused by some other factor. Maybe your body just naturally has a higher level, it varies greatly between women. Another possible reasoning for higher than normal hcg is a multiples pregnancy. Hcg goes 30%-50% higher than normal for twin and higher pregnancies. Ok_Spite6846., Mine is 11,368 on week 6, up from 8948. Don't worry, you still within range. My Progesterone (P4) is low, at 6.6, down from 15 from a week back. All these numbers can drive anyone batty.. I started with low HCG. I don't know when inoculated but when I had my first draw 4 was after my last period my number was 90., I transferred 2 5 or 6 day embryos and my HCG levels 14 days after the transfer was 2999. Had to wait until my ultrasound to confirm it was twins. ... 30 weeks with twins. There may be suspicion with high numbers but just as many have normal range or high and not twins so will definitely need to wait for your ultrasound., Study 3 - high hcg levels 4 weeks commando: each breakfast had to decide between high hcg levels 5 weeks twins them which high hcg levels 6 weeks would go to an central water. Hais liver consisted of an metallic investment health high hcg levels 5 weeks twins surrounded by pronouncements of identity impregnated addition, emphasis and …, hCG levels in our blood change during the first trimester, rising rapidly. Nonpregnant women have less than 5 milli-international units per milliliter (mIU/mL). "A normal blood level for hCG on the day a period is due (14 days after ovulation) is 40 to 120 mIU/mL," Dr. Matthews says. Levels should then double every 48 hours from weeks four ..., HCG Levels during the first trimester. Normal HCG levels range widely in early pregnancy. Below are the ranges of beta hCG by week following your Last Menstrual Period (LMP), according to the American Pregnancy Association. 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 ..., Through the year before the Olympics, while we were living in Beijing, I used to do daily views-out-the-window as a guide to the challenge the air-cleanup-people faced. For instanc..., On 21st aug my hcg was 31 , on 23rd Aug HCg was 51.5 and on 27th August hcg level is 473.98. On 2nd Sep hcg was 2576. I have gone through Frozen embroy transfer on 12th august 2023. Two 4AA grade embroy transferred. Please let me know if these HCG values are ok and also is there chances of twins in this., Recently I gave birth to fraternal twin babies -- one I carried as a stillborn for a number of weeks after her passing due to a condition known as Turner... Edit Your Post Publishe..., After 6-7 weeks of the pregnancy, the best indication of a healthy pregnancy is a good fetal heartbeat on a sonogram. Blood hCG levels are not very helpful to test …, I had hcg levels of 10,000 at 5+1 and I've just seen my baby's heartbeat at 7+1. All perfectly fine, had a bit of spotting but baby is healthy and measuring well. I hope the same goes for you, or maybe twins! With my last pregnancy, my hcg levels were over 25k at 5w4d. One healthy baby., Medically Reviewed by Eric Surrey, M.D. | May 7, 2021. Stocksy. They can vary a whole lot from one mom-to-be to the next, so resist the urge to compare numbers. In This Article. …, Like. m. mpelli23. I've been thinking I might be pregnant with twins too. They run in my family and at 4w3d my hcg was 639 and at 5w0d it was 3359. I barely had any nausea with my son and I've had such strong waves of nausea for the last couple of days. I'm 6w2d today. Im simultaneously excited and terrified at the prospect., 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. Sometimes with multiples, there is a higher, early trend in hCG levels. Twin and multiple pregnancies may also have 30-50% higher hCG levels than for one baby., **UPDATE** Thank you ladies for all of your support! Went for my ultrasound today..... Everything is PERFECT!!!!! YAY! Only 1 baby in…, Elevated hCG Levels. Women who are pregnant with twins may have increased levels of hCG, which is the hormone that is produced during pregnancy. However, increased levels of hCG do not automatically indicate multiples. Further investigation would be needed to verify the cause of a high hCG level. Abnormal AFP Test Results, hCG levels Twins/ Multiple Pregnancies. hCG levels with Twins or multiple pregnancy generally show higher development of the hormone, obviously due to the number of embryos formed in the uterus ( ref chart below - hCG levels singleton vs twins chart ). Therefore hCG levels for twins/ multiple pregnancy generally rise exponentially in case as ..., Early hCG Levels and Twin Possibilities. Pregnancy. HCG Levels During Pregnancy: What Is Normal? Pregnancy. Your Guide to Pregnancy Hormones ... November 04, 2023 | by mama0317. Mama's what was you Hcg level at 6 weeks?I'm scared that mine is low. I'm at 9,843.I was at 822 at 4 weeks 4 days so it has gone up but I feel like not enough ..., Having high levels of hCG, a pregnancy hormone, or alpha-fetoprotein (AFP), a protein made by the fetus’s liver. Hearing more than one heartbeat on a fetal Doppler. ... A full-term pregnancy is 37 weeks. Twin pregnancies rarely last this long, with the typical twin pregnancy lasting 35 to 36 weeks. Many people go into labor sooner., I had two frozen embryos/blasts transferred on June 26. I went in for blood work this morning (14dp5dt, so I am 4 weeks 5 days). My HCG level came back at over 1000. I managed to not hear the exact number because my brain freaked out (in a good way) and stopped listening after hearing "one thousand." They only wanted the number to be over 280., What should your hCG levels be at 6 weeks? At 6 weeks pregnant, your hCG levels can range from about 152 to 32,177 mIU/mL. Can you confirm twins at 6 weeks? Although the factors above may be signs of a twin pregnancy, the only sure way to know you're pregnant with more than one baby is through an ultrasound. Some doctors schedule an early ..., As measured at 16 days after conception, those with hCG levels in the 75th percentile or higher had a miscarriage rate of 8%, compared to a miscarriage rate of 16.7% among those whose hCG levels ..., I think they were 1000 at 5 weeks, with normal being 200-7100. I had very high betas with my singleton pregnancy, possibly due to having had a miscarriage immediately prior. I didn't even have blood work to confirm this pregnancy, just an ultrasound at 6 weeks so that's how I found out., Every 48 to 72 hours, throughout the first four weeks of a viable pregnancy, hCG levels typically double. The hCG levels should then increase more gradually, doubling around every 96 hours around the 6-week mark. ... The normal hCG levels for twins is 30% to 50% higher than in single pregnancy- somewhere around 200 to 1750 mIU/ml.