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.
Standard hCG levels
| Pregnancy week | Standard hCG range |
|---|
| 3 weeks | 5–50 mIU/mL |
| 4 weeks | 5–426 mIU/mL |
| 5 weeks | 18–7,340 mIU/mL |
| 6 weeks | 1,080–56,500 mIU/mL |
The main benefit is — you guessed it — they're cheaper! But they work just as well. The results of less expensive pregnancy tests will still be up to 99 percent accurate when you use them according to the manufacturer's instructions.
According to pregnancy information site BabyGaga, more expensive branded tests like Clear Blue and First Response are designed to detect pregnancy earlier than dollar store ones — some as early as six days before you miss your period. Meanwhile, dollar store tests tend to detect pregnancy after a missed period.
Get quick and reliable results with our pregnancy tests and ovulation predictors. All items are only $1 each, so you can get the answers and peace of mind you need without paying too much.
An evaporation line on a pregnancy test is a faint line (or rather, mark) caused by a test reaction that occurs when the urine evaporates, or when the test gets wet. Sometimes this line appears in the test window, making it look like a faint positive result. Evaporation lines are colorless streaks, not actual lines.
Urine hCG concentrations reach 10 to 25 mIU/mL by 7 to10 days after conception. Urine pregnancy tests have a sensitivity of 90% to 97% and a specificity of 99% for pregnancy during the first week after a missed menstrual period.
Clearblue (manual and digital tests): 22 mIU/ml. e.p.t. (manual and digital tests): 22 mIU/ml. First Response Early Results: 6.3 mIU/ml.
Though you should keep in mind that a normal result for the first Beta hCG test should be around 100 mIU/ml, if your level is lower than this you shouldn't start worrying just yet. After 48-72 hours you will take another pregnancy test to confirm that it's increasing as expected.
Results: Using a mixture of hCG, hyperglycosylated hCG and free β-subunit typical for early pregnancy, the sensitivity of the First Response manual and digital tests was 5.5 mIU/mL, while the sensitivities of the EPT and ClearBlue brand manual and digital tests was 22 mIU/mL.
Pregnancy Test Kit | Testing at 10mIU/ml | 2.5mm Wide Strips | 10 Test Kits. These strip tests are at a sensitivity of 10miu and work to an accuracy level of 99%. They can be used up to 6 days earlier than a standard pregnancy test kit.
Whereas some at-home digital pregnancy tests have a sensitivity of 20 mIU/mL (meaning there needs to be at least 20 mIU/mL of hCG in the urine), the Natalist test has a sensitivity level of 10 mIU/mL, making it more sensitive.
Results: First Response Early Result had an analytical sensitivity of 6.3 mIU/mL, which was estimated to detect greater than 95% of pregnancies on the day of missed period. The sensitivity of Clearblue Easy Earliest Results was 25 mIU/mL, which indicated detection of 80% of pregnancies.
Average hCG levels: Less than 10 U/L in non-pregnant women. 10 to 25 U/L for a 'borderline' pregnancy result. more than 25 U/L for a postive result.
milli-international units per milliliter
If you take a home pregnancy test and the results reveal a faint positive line, there's a strong possibility that you're pregnant. Some women see a clearly distinguishable positive line after taking a home test.
A faint line may also indicate what's known as a chemical pregnancy, which is when you are no longer pregnant, but there is still enough beta hCG in your urine for a positive test. Kirkham says the raised hormone levels could last for weeks after a miscarriage.
Pregnancy hormone levels present – 2 red lines in both the test window (T) and control window (C) means you may have retained products of conception. One line may be lighter than the other; they do not have to match.
Evaporation LinesThe instructions on most pregnancy tests will advise you to read the results within a certain window of time. This usually ranges between a couple of minutes up until 10 minutes later. If you see a positive result beyond this time frame, you may be left second-guessing the results.
- Our pick. First Response Early Result. Most sensitive, easy to read. The First Response Early Result manual test is the most sensitive over-the-counter pregnancy test you can buy.
- Runner-up. Clearblue Rapid Detection. Nice design, less sensitive.
- Also great. ClinicalGuard HCG Pregnancy Test Strips. A cheap supplemental test.
Can I be pregnant and still test negative? Modern HPTs are reliable, but, while false positives are extremely rare, false negative pregnancy tests happen all the time, especially in the first few weeks – and even if you're already experiencing early symptoms.
Our early 10mIU/ml pregnancy test kit can detect a pregnancy from as early as just 2 days after implantation/conception (though 4-6 days is more normal).
How does Clearblue® Ultra Early work? When you are pregnant your body produces the pregnancy hormone hCG (human Chorionic Gonadotrophin). This test can detect tiny amounts of hCG in your urine (the sensitivity of this test is 10 mIU/ml).
After you conceive (when the sperm fertilises the egg), the developing placenta begins to produce and release hCG. It takes about 2 weeks for your hCG levels to be high enough to be detected in your urine using a home pregnancy test.
A positive beta hCG levels means that you are pregnant. The hCG level depends on how far along a woman is in her pregnancy. A positive beta human chorionic gonadotropin (hCG) level usually means that you are pregnant. Pregnancy tests detect the hCG hormone in the blood and urine.
HCG is the first known hormonal signal of the conceptus. Its mRNA is transcribed as early as the 8-cell stage [4], while the blastocyst expresses HCG before its implantation [5,6]. HCG is increasingly produced after implantation by the syncytiotrophoblast [7].
For many of these tests, hCG can be detected in your urine about 10 days after conception. However, taking it after your missed period reduces the chance of getting a false-negative. There are a few things to keep in mind when you take a home pregnancy tests, including: Using your first morning urine when possible.
As pregnancy progresses and hCG levels rise even more, many women begin experiencing more symptoms. Some of the most common include: dizziness or lightheadedness due to hormonal shifts and changes in the blood pressure and heart rate. nausea, especially when hungry.
Complications & Side Effects of Dehydration during PregnancyIt's believed some women experience spotting when dehydrated, as their hCG levels temporarily stop increasing, or dip. Once re-hydration is reached, hCG levels level out and spotting may stop.
