Diagram of invalid early pregnancy test paper

I believe that many female friends have experienced this situation, that menstruation is forbidden. For women who are preparing to get pregnant, it is also difficult to determine whether the delayed menstruation is due to pregnancy. But I really want to know the result, because if it is too early, the ultrasound cannot detect the gestational sac. At this time, I need to use a pregnancy test paper to test. However, the result of the early pregnancy test paper seems to be wrong, and it keeps showing invalid information.

Detailed explanation of why pregnancy test strips are invalid?

1. Positive ( ): Two dark purple bands appear. One is located in the testing area (T) and the other is located in the quality control area (C). Indicates pregnancy.

2. Negative (-): Only a dark purple band appears in the quality control area (C), and no dark purple band appears in the detection area (T). Indicates not pregnant.

3. Invalidation: No dark purple bands appear in the quality control area (C), indicating an incorrect operating procedure or the experimental reagent strip has become moldy and damaged.

Note: The printed color of the test strip quality control line and the test connection line may show different shades of color depending on the amount of hCG in the urine. The result judgment is carried out according to the above standards.

In order to improve the accuracy of early pregnancy test strips, it is necessary to master the proper operation method of early pregnancy test strips.

Pregnancy test strips detection method

1. Be sure to read the manual carefully before conducting the test, and collect and restore the test reagents and urine samples to room temperature (20℃-30℃) before use.

2. Remove the test strip from the original aluminum foil packaging bag and use it as soon as possible within 1 hour.

3. Insert the test strip into the urine sample collection hole in the direction of the arrow. Note: The urine level must not exceed the marked line on the test reagent strip.

4. After at least 5 seconds, remove the device and place it on a clean, flat surface to observe the result.

5. Wait for the dark purple band to appear. The test result should be loaded in 3 minutes. The judgment will be invalid after 10 minutes.

Therefore, incorrect operation or problems with the test strip itself may also cause the pregnancy test strip to become invalid. At this time, you can buy test paper again for testing, and pay attention to the correct operation steps above. If the operation is safe and the test result is still not positive, it largely indicates that you are not pregnant. But there is no need to be discouraged. As long as you prepare well for pregnancy, you will get pregnant when the time comes.