With the delay in menstruation and the appearance of the first signs of pregnancy in the first place, any woman buys a test. This is a very convenient and quick way to calm your worries. However, it is not superfluous to know whether the test always shows pregnancy. It often happens that you are sure of the coming conception, but the test results do not confirm this. There are several reasons for this.
Probability of pregnancy with a negative test
Delayed menstruation can be a consequence not only of pregnancy that has come. There are many factors that affect the menstrual cycle. These are gynecological diseases ( inflammation of the ovaries ), frequent and severe diets, stress and prolonged depression, excessive physical exertion, and hormonal failure in the body. In any case, if you have a delay, and the test does not show pregnancy for a long time, it is necessary to visit a doctor. Because the reasons for the delay or negative test during pregnancy can very often be signs of health problems.
Causes of a negative pregnancy test
In most cases, the test result depends on its quality and correctness of application. However, there are other factors that affect this indicator. This can be not only non-compliance with instructions, but also more serious reasons, for example, the pathology of the fetus. Let's look at them in more detail.
- Testing in early pregnancy . The most common reason why a test does not determine pregnancy is a low level of hCG in the blood. As a rule, the test can show a reliable result only after the second week of conception. In addition, sometimes a cycle may fail, late ovulation or implantation of the fetal egg. All these factors affect the level of hCG. Therefore, if you have doubts about the test result, try again in a few days, and use the test of another manufacturer. If the result did not change after that, then it's worth to turn to the doctor and take the tests.
- Improper use of the test . To get a reliable result, you must carefully study the instructions and conduct the test strictly according to the instructions. Otherwise, you can get the wrong result. In addition, a false pregnancy test can be and if it was incorrectly stored, the expiration date has expired, or the test is substandard or defective.
- Taking medication . A negative pregnancy test can also be used if you used diuretics or a medicine before testing. Diluted urine contains less hCG, so early in the test it is better to conduct the test in the morning. In addition, if you drank too much liquid in the evening, the pregnancy test may be negative even in the morning.
- Pathological processes in the body of a woman . If the pregnant woman has various diseases of the internal organs, in particular, the kidneys, then the test can also show
false negative result. This is due to the fact that in renal diseases hCG in the analysis of urine remains at a low level. - Pathology of development of pregnancy . There are cases, when pregnancy continues monthly, and the test shows a negative result. This is most often an ectopic pregnancy. Also, a false negative result can be observed with an abnormality of fetal development, frozen pregnancy , placental fetal insufficiency or the threat of miscarriage. Therefore, if you suspect that conception has occurred, but you see 1 strip on the pregnancy test - contact the gynecologist immediately.