What does a negative urine pregnancy test mean?

Because when a fertilized egg is produced in a woman's body, the body's technical level will also change, so at this time, using an early pregnancy test paper or a pregnancy test stick can detect whether a woman is pregnant. Both of these testing methods generally require the use of urine, because urine can reflect the hormone levels in the body. So what does it mean if the urine pregnancy test is negative?

What does a urine pregnancy test check for?

Urine pregnancy test, also known as early pregnancy test, is a test to determine whether a woman is pregnant by detecting whether the urine contains a certain amount of human chorionic gonadotropin (HCG). Normal non-pregnant women are negative, while pregnant women are positive. Generally, a urine pregnancy test will be positive 35 days after menstruation.

Urine pregnancy test strip principle

This test is detected by early pregnancy test strips. When the male's sperm combines with the female's egg to form a fertilized egg which is implanted in the uterus, a new hormone is produced in the female's body, medically called human chorionic gonadotropin (HCG). Its physiological function is to maintain pregnancy. This hormone can be detected in urine through early pregnancy test strips 7 to 10 days after conception.

Urine pregnancy test precautions

Urine pregnancy tests must use morning urine because morning urine is concentrated and has higher hormone levels. In order to increase the positive rate of the test, you should try to reduce your water intake the night before. It is best to get a container from the hospital laboratory in advance, because it contains preservatives and the urine is not easy to deteriorate. If conditions permit, any wide-mouth bottle can be used, but it needs to be washed and boiled for sterilization or rinsed with boiling water. After collecting about 10 ml of morning urine, send it to the hospital for testing immediately. If the time is delayed too long, it may affect the accuracy of the test. If you have any questions, you can ask doctors, examiners or other medical personnel.

Urine pregnancy test results

1. Positive. A red reaction line appears at the test line position and the control line position, that is, two red lines will appear on the test paper; if the test line is darker than the control line, it means a strong positive, which means that the pregnancy has been going on for some time.

2. Negative. Only one red reaction line appears at the position of the control line.

3. Invalid. If no red reaction line appears on the test paper, or only one reaction line appears at the detection line position, it means that the experiment has failed or the test paper is invalid, and you need to try again with a new test paper.

The urine pregnancy test method is just one of many pregnancy test methods, and because the urine pregnancy test method is easily affected by external factors, false positive or false negative test results may occur. In fact, HCG will appear earlier in the blood than in the urine. Therefore, the editor recommends taking a blood test for HCG, which can detect whether you are pregnant earlier and more accurately.