How Does Clear Blue Pregnancy Test Work?

How Does Clear Blue Pregnancy Test Work
How does Clearblue® Rapid Detection Pregnancy Test work? When you are pregnant your body produces the pregnancy hormone hCG (human Chorionic Gonadotrophin). The amount of hCG in your body increases in the early stages of pregnancy. Clearblue® Rapid Detection can detect tiny amounts of this hormone in your urine.
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How does Clearblue pregnant test work?

How accurate is the Clearblue Digital Pregnancy Test? – The Clearblue Digital Pregnancy Test is 99% accurate at detecting whether you are pregnant or not if you use it from the first day of your missed period. The weeks indicator is sensitive enough to be 93% accurate when you test using your first urine of the day.
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How soon can a Clearblue Pregnancy Test show positive?

Some early pregnancy tests, such as the Clearblue Early Detection Pregnancy Test, can tell you whether you are pregnant as early as 6 days before your missed period (5 days before you expect your period) 1.
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How long do you hold a Clearblue Pregnancy Test in urine?

Remove the test stick from the wrapper and take off the cap. Place the absorbent tip in your urine stream for 5 seconds. Or, if you prefer, dip into a urine sample collected in a clean, dry container for 5 or 20 seconds, depending on the test you’re using.
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How does a positive Clearblue test look?

9. Clear Blue Rapid Detection Pregnancy Test – There are two windows on this pregnancy test, with the one on the right displaying the blue vertical control line. The larger square window will have a blue horizontal control line and, if the test is positive, there will be a vertical blue line creating a “plus” sign to indicate you’re pregnant.
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Does Clearblue tell you right away or you wait?

A ‘Pregnant’ result may appear in 1 minute when testing from your missed period (which is the day after your expected period). Wait for 3 minutes to confirm a ‘Not Pregnant’ result or when testing before you have missed your period.
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Can Clearblue pick up 2 weeks pregnant?

It’s like 2 tests in 1 – it first detects if the pregnancy hormone is present with over 99% accuracy from the day of your expected period, and if you are pregnant, it ALSO indicates how many weeks since conception occurred 1-2, 2-3 or more than 3 weeks (3+).
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How often is Clearblue a false positive?

Because hCG is usually only present in your body when you’re pregnant, false positive results are incredibly rare. If you use a reliable pregnancy test, like Clearblue, you can be over 99% certain you’re pregnant if you see a positive result.
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How many minutes do I wait after peeing on a pregnancy test?

How to Use a Home Pregnancy Test – Follow these tips on how to use a home pregnancy test. Firstly, take your test first thing in the morning. Your urine is more concentrated at this time. If you are pregnant, your first morning pee will have a higher amount of hCG in it than pee from later on in the day.

  • If the test requires you to pee directly onto the stick, place the side of the test stick with the absorbent tip in your urine stream with the result window facing up. Pee on it for about 5 to 10 seconds (or whatever time it says in the directions).
  • If you have collected your urine in a cup, use the supplied dropper to place a small amount of pee in the testing well. If your test did not provide a dropper but said that you could use a collection cup, dip the absorbent end of the pregnancy test into the cup of pee and hold in place for 5 to 10 seconds (or whatever time it says in the directions).
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Place the pregnancy testing stick on a flat, dry surface with the “result window” facing up. The instructions will tell you how many minutes to wait for the results to appear. This can be anywhere from one minute to five minutes, though some home pregnancy tests can take up to 10 minutes to give you an accurate result.

There will most likely be a “control window” on the test as well as a result window. You will probably see the background in the control window get darker as the urine passes through. Most control windows will display a line or symbol to show that the test is valid. If this control indicator does not appear, chances are very likely that the test is not valid or did not work properly.

Once the required amount of time has passed, you can check the results. Keep in mind that different tests may display the results differently, so make sure you read in the instructions what shape or symbol you should be looking for. Examples include:

  • A pink or blue line
  • A red plus or minus sign
  • A color change in the window or in the urine in the test
  • The words “pregnant” or “not pregnant”

If any line, symbol, or sign shows up in the results window, no matter how faint, you can consider the home pregnancy test result to be positive. A line will not show up if the test does not detect hCG—so even the faintest line means that the test has picked up on hCG in your pee.

  • If you got a positive test result on your home pregnancy test, it is important that you make a medical appointment.
  • Your doctor can confirm the result of your home pregnancy test and begin prenatal care.
  • Your test result is only accurate if you see the indicator during the specified amount of time.
  • If the instructions say to wait three minutes, whatever shows in the result window after three minutes is your test result.
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If the test sits for too long, an evaporation line may appear, If any line, symbol, or sign shows up after the amount of time specified in the instructions, this is not considered a positive pregnancy test result.
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Can Clearblue give false negative?

Know this: All Clearblue ® pregnancy tests are over 99% accurate from the day you expect your period. False positives very rarely occur, and are often due to medical conditions or certain medications. False negatives, while more common, typically occur due to testing too early or drinking too much liquid before testing.
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What does a faint line mean on a clear blue pregnancy test?

Any positive line, no matter how faint, means your result is pregnant. Levels of hCG in your body will increase over the course of your pregnancy. If you test early, your hCG levels may be still be low and you’ll see a faint positive line.
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How accurate is Clearblue after missed period?

Should I rely on detectable hCG levels to choose my test? – One of the most valuable pieces of information you can have is the hCG level that the test can detect. The lower the amount of hCG required, the more sensitive the test and the earlier you’ll be able to confirm a pregnancy.

Unfortunately, this information can be hard to come by. Clearblue is transparent and posts these levels on its website. Other brands list them on the directions inside their packages (so you won’t know the detectable hCG level unless you buy a test). Other brands refuse to give out this information at all.

Here are the detectable hCG levels found in some of the most common pregnancy tests in Canada. They’re almost all the same, regardless of price or promised “early result.” Remember, the lower the number, the more sensitive the test. Clearblue Early Detection Pregnancy Test : 10mIU/mL Clearblue Pregnancy Test with Weeks Indicator : 25mIU/mL Clearblue Rapid Detection Pregnancy Test : 25mIU/mL Life Brand One Step Pregnancy Test (house brand of Shoppers Drug Mart): 25mIU/mL Life Brand Early Result Pregnancy Test (house brand of Shoppers Drug Mart): 25mIU/mL Medi Care One Step Pregnancy Test (sold at Dollarama): 25mIU/mL Equate One Step Pregnancy Test (house brand of Walmart): 25mIU/mL
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Do pregnancy test results change after 10 minutes?

A Word From Verywell – Bringing a new baby into the world is a big deal and will impact decisions you make in the near future. It’s not surprising if conflicting or confusing pregnancy test results leave your feeling stressed or anxious. Remember this-you can generally count on a positive result to be accurate, but you can’t be totally sure about a negative result until you get your period.

  • To avoid any confusion caused by evaporation lines, read your test after three minutes and throw a negative result away once 10 minutes have passed.
  • If you do see any changes, only assume that your test was accurate during the 10 minute window.
  • If you get a positive test, contact your healthcare provider.

They will have you come in for an ultrasound or blood test to confirm your pregnancy.
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Do all Clearblue tests turn positive?

Most home pregnancy tests are reliable, for example Clearblue’s tests have an accuracy of over 99% from the day you expect your period, and while it’s possible a test showing a negative result is wrong, particularly if you’re testing early, getting a false positive is extremely rare.
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What does a faint line on a clear blue pregnancy test mean?

What does a very faint line on a pregnancy test mean? – A very faint line on a pregnancy test usually means that and you’re in the early stages of pregnancy. But you’ll want to test again a few days or weeks later to see if that line has become thicker and darker, meaning your pregnancy is progressing — and you can safely start getting excited! It is possible to see a faint line on your pregnancy test and get your period a few weeks later, meaning that you’re not actually pregnant, or were only briefly pregnant.

This doesn’t mean the test didn’t work, but you might have experienced a very early and common pregnancy loss called a, It could also indicate other kinds of early pregnancy losses like an ectopic pregnancy. Trusted Source Ectopic Pregnancy As upsetting as it can be, you probably never would have realized what had happened if that faint line hadn’t clued you in, and the event will have no impact on your ability to get pregnant again.

If the results of your home pregnancy test are confusing or unclear, contact your OB/GYN to get a blood pregnancy test to confirm the pregnancy. This test measures the exact level of hCG in your blood and if there is any concern about the health of the pregnancy, the test can allow your doctor to trend the levels to ensure all is progressing well in the early stages.
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