Hello, he jerked me today to do a test, although to m two more days, the test showed the second oochen weak strip, ran into the pharmacy and again made a test, only another company, and again the second half a little brighter, But also weak
The only significant drawback of highly sensitive devices in their cost. All varieties of test strips act in the same way - they are designed to determine the level of hCG in the urine of a woman. The chorionic gonadotropin of a person begins to be produced by the body from the moment of fixing the fertilized egg to the uterus wall. Such a phenomenon is observed on the 5-7th day after the conception of the child.
HCG since the onset of fertilization begins to rapidly increase its concentration. In the first 14 days, its level is doubled every 2 days. From the 10th day after conception, the level is already sufficient in the blood of the girl in order to diagnose pregnancy. From the absorbent part of the express test, during contact with HCG, the coloring substance is distinguished, which changes the shade of the second strip. The first is considered the control and changes the color when contacting with any liquid. The higher the hormone level, the brighter the shade of the second strip on the express test.
It happens that the woman is checked at home for pregnancy, and sees two stripes. At the same time, the second is weakly noticeable, it is much paler first. Does this mean that a woman got pregnant? With a probability close to 100%, a weak second strip on a pregnancy test says that conception took place. If testing is completed after a few days, the strip is painted more intensively due to the increase in the number of HCG in the urine.
Any home test for pregnancy is based on measuring the concentration of hCG in the urine. This hormone stands out in blood only in pregnant women. It stands out with urine. Therefore, in this biological fluid, the concentration increases in proportion to the level of hCG in the blood.
Pregnancy tests may have different sensitivity. But the principle of action they have one. Upon reaching a certain concentration of hCG, the band acquires staining. The intensity can be correlated with the HCG level. The smaller this hormone, the paler the indicator zone.
The amount of HCG generated depends solely on the period of gestation. With each day the level of secretion of this hormone increases. Accordingly, the more time passed since the fertilization, the less likely to see the pale control line.
In turn, the density of urine affects the concentration of hCG. What it is higher, the greater the concentration of any substances in it, including hormones. And vice versa, the less urine density, the greater the water in it. The ratio of fluid and hCG changes. Therefore, the band can be expressed weaker. Sometimes she is not painted at all. If this happens on the background of really coming pregnancy, such a test is called false-negative. His reason most often is the impatience of a woman who is checked too early.
How accurate will be testing, depends on what is your term of pregnancy. If you find a weak strip, with a high probability of this period small. Most likely, you have no delay of menstruation, or it is no more than 1-2 days.
The basis of such tests is the same principle - the test has a certain reagent, which has a direct reaction to the gonadotropin hormone contained in the urine. The resulting reaction will indicate that pregnancy has come or not.
is not considered a positive result and the case when the second strip is manifested on the test, having a gray or white color (called a drying strip, that is, in this case, there has not been a manifestation of reagent). It is also worth considering the fact that such a phenomenon may occur in the event that too much liquid fell on the surface of the test.
What in tests for pregnancy, which is in tests for ovulation, the presence of the second strip always indicates the presence of a process. The second strip can be minimally bright - the so-called "ghost of the second strip", but even he confirms the pregnancy. The brightness of the strip depends on the level of hCG in the urine. On the very first days it is low. The test still does not have time to react to it fully. If you do a pregnancy test one and the same brand day after the day, then you will see how the second strip will be becoming brighter and brighter. If you need a clear and rapid confirmation of a weakly pronounced second strip, then you need to pass the blood to hCG. This analysis will show everything immediately and accurately. The absence of pregnancy in the test can only be if the second strip is not at all, and you see the crystal white plot of paper.
The photo it seems that it seems like a weak second strip is evaporated. But with such a big delay, this strip should already be brighter. It is better to consult a doctor. You can do an ultrasound in a paid clinic, or in the same place to pass the blood test on the hCG. And then everything will be clear. These analyzes do very quickly.
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