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Can clearblue give false negative?
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.
Why does clearblue have two windows?
The Clearblue with Colour Change Tip pregnancy test is the first test to give a clear + or –sign to indicate whether or not you are pregnant; there are two windows, one is a control window which shows that you have done the test properly and the other is the results window; if you are pregnant a blue plus sign will …
Is the control window on a pregnancy mean anything?
A new pregnancy test should used the next morning. If the control window is working properly, and a line, plus sign, or other symbol as directed by the package instructions appears in the results window, this means the test is positive and the woman is pregnant.
Why do some pregnancy tests show negative and some positive?
The hook effect happens when you have too much hCG in your blood or urine. How is this possible? Well, the high levels of hCG overwhelm the pregnancy test and it doesn’t bond with them correctly or at all. Rather than two lines saying positive, you get one line that incorrectly says negative.
What does the control window mean on clearblue?
A blue line must be present in the control window when you read your result. This line shows that the test has worked. If no blue line appears in the control window within 10 minutes the test has not worked.
How many weeks does a clear blue test go up to?
The Clearblue Pregnancy Test with Weeks Indicator is highly sensitive and can be used up to 5 days before the missed period. In a study, 135 women provided their first morning urine samples every day during the cycle in which they became pregnant.
Is it possible to get negative result and still be pregnant?
Is it possible to be pregnant and get a negative pregnancy test result? Yes, it is possible. Getting a negative result doesn’t mean you’re not pregnant, it may just mean your hCG levels are not high enough for the test to detect the hormone in your urine.
How to tell if Clearblue® reassurance pregnancy test has worked?
If the Color Change Tip has not turned completely pink you may not have applied enough urine. However, if the blue line in the control window appears within 10 minutes of performing the test then the test has worked. I have used Clearblue® Reassurance Pregnancy Test but no blue line has appeared in the control window.
How do I know if my pregnancy test results are negative?
For your result to be ‘Not Pregnant’ (negative) there must be a blue line in the control window and a ‘-‘ (minus) symbol in the result window within 10 minutes of performing the test. If you are still unsure of your result, you should wait at least 3 days before testing again, taking care to follow the instructions.
What does it mean when a positive pregnancy test is faint?
The strength of the positive test line depends on how much hCG is in your urine. If the line is faint, it usually means that the hCG level is low. One reason why hCG levels may be low could be because you’re still very early into your pregnancy.
What do the symbols mean on my pregnancy test results?
A ‘+’ (plus) symbol indicates your result is ‘Pregnant’. A ‘-‘ (minus) symbol indicates your result is ‘Not Pregnant’. A blue line must be present in the control window when you read your result.