Can you get a negative pregnancy test after a positive?

One explanation for a false negative pregnancy test is what’s called the hook effect. It’s not common but sometimes this effect leads to urine and blood tests giving the wrong result. This error might happen even after you’ve had one positive pregnancy test and test again a couple days later.

What causes a pregnancy test to be positive and then negative?

One of the most common mistakes is taking the test too early during your cycle. This can cause either a false negative or a false positive. It’s also important to use the test when your urine isn’t diluted excessively with water.

Is it possible for a clear blue test to be wrong?

(For example, the Clearblue Early Detection Pregnancy Test claims more than 99 percent accuracy if you test the day of your expected period or one, two or three days before; 96 percent accuracy four days before; and 79 percent five days before.

Can you get a positive pregnancy test and then get your period?

Getting your period a week after a positive pregnancy test can be confusing and frightening, but it’s actually much more common than you might realize. You may have experienced what’s often referred to as a chemical pregnancy. Many women who have a chemical pregnancy actually don’t even realize they’ve conceived.

How accurate is the clear blue test?

ClearBlue pregnancy tests are over 99% accurate. No other test offers the same accuracy as CB. They have early detection test that can be used 6 days before your expected period.

How sensitive is Clearblue Digital?

Sensitivity. The Clear Blue Easy Digital Test is highly sensitive to the hCG hormone. It can pick about 25 mIU of the hormone, which in comparison with other digital home pregnancy test kits is average. There are some home pregnancy test kits that can pick even 20 mIU of the hormone in the urine.

What is clear blue?

Clearblue is a brand of SPD Swiss Precision Diagnostics GmbH and offers consumer home diagnostic products such as pregnancy tests, ovulation tests and fertility monitors. The Clearblue brand is distributed in 47 countries and was first launched in United Kingdom in 1985.

Is the clear blue pregnancy test accurate?

Accuracy of the Test. Although, the Clear Blue Easy Digital Test like others claims to be 99 per cent accurate and can be used to test for pregnancy right on the first day of the missed period.