The pregnancy test lets you know if you are pregnant, but pregnancy is not immediately detectable after fertilization. When to do a pregnancy test? Use, results, “false negative”, urinary pregnancy test or blood pregnancy test … We take stock.
During her life, a woman can be brought to Do a pregnancy test. Either because she tries to have a child or because she finds a delay in rules, or even when some pregnancy symptoms appear. For this, she generally produces a first Urinary pregnancy test. This test makes it possible to detect in the urine the presence of theBeta-HCG hormonewhich indicates whether or not you are pregnant. When to do a pregnancy test? How to use? How to read the results? Here is all the information to know about the pregnancy test.
When to do a pregnancy test?
It is recommended to Make a urinary pregnancy test on the first alleged day of your rules, if possible as soon as possible. Because in the morning, the first urine is more concentrated in hormones. Indeed, Urinary pregnancy tests measure the concentration ofChorionic gonadodotrophin hormone (HCG). Also, if a pregnancy is underway, this hormone begins to be produced only after the implantation of the embryo in the uterus. It is therefore detectable only ten to twelve days after fertilizationdepending on the sensitivity of the test, knowing that for fertilization to take place, you must first have ovulated … In addition, The date of ovulation also varies from one woman to anotherbut we consider that in average, it takes place around the fourteenth day of the menstrual cycle. These two elements must be taken into account when deciding to do a pregnancy test.
Can we do a pregnancy test in the evening?
Today, with the technology of certain new tests, which are more sensitive and precise, It is possible to do a pregnancy test in the evening or at any time of the day. However, remember that the hormones you want to detect during a pregnancy test are more concentrated in the morning.
THE Urinary pregnancy tests are easy to use at home. Unpack the “tester”, remove the cap on the “foam” tip, called the deposit wick, then generally, just place the “tester” in a bottle of freshly collected urine or maintain it “under the jet” a few seconds while you urine. Then you can put it or keep it in your hands. All you have to do is wait a few minutes to read the result, 3 minutes often depending on the tests.
How long can you keep your urine to do a pregnancy test?
If you want to get ahead, you can Keep your urine in the fridge, between 2 and 8 ° degrees for 48 hours Before doing the urinary pregnancy test.
After carrying out the pregnancy test, the time comes to read the result. Reading may be different from one test to another. Reading the user manual is therefore useful upstream. Generally, on most tests, the result is Visible on the small reading window in the center of the test.
- If the result indicates two parallel features Or a positive symbol, it means you are pregnant.
- Otherwise, If only one trait appears, This means that you are not pregnant.
The intensity of the color of the line on a pregnancy test depends on the hormone HCG concentration in the urine. If the line that appears seems clear or pale, it shows that you are surely pregnant, but that your HCG rate is still low. Unlike the positive line which is generally more dark, therefore more visible. To ensure the result of the pregnancy test, complete it with a blood test that will precisely determine your HCG rate.
Can a pregnancy test reveal a bad result?
Yes, it is possible for a “mistaken” pregnancy test. We then speak of “false negative” or “false positive” results. Most urinary pregnancy tests are 99 % reliable but there are 1 % margin of error.
What do the results “false negative” or “false positive” mean?
THE “False negatives” (the test claims that You are not pregnant when you are) are the most common: very often, they are due to too early use of the test, which could not detect the HCG, because produced in too low quantities … To have a clear heart, wait a few days, then do a new test. As of false positive (they display that You are pregnant while you don’t expect a child), they have really become very rare these days. Generally, it takes special conditions for this to happen: this can be observed after a miscarriage or an interruption of pregnancy. For what ? Because the HCG level remains high for several more weeks, which can react the test wrongly.
Can a denial of pregnancy distort the results?
A denial of pregnancy cannot distort the results of a pregnancy test. Even if the pregnancy is not physically seen, and the woman has no pregnancy symptoms, a urinary pregnancy test can detect the HCG hormone and indicate if there is a pregnancy. The blood test is also used to assert pregnancy or not. However, pregnant women who make a denial of pregnancy do not realize that they expect a child, and therefore, do not seek to perform a pregnancy test.
If your Urinary pregnancy test is positivetalk to your doctor or gynecologist. He can prescribe a blood analysis to confirm your pregnancy. 100%reliable, this blood pregnancy test, performed in the laboratory, also allows you to have indications on the fertilization date And therefore the progress of your pregnancy. It is based on the same principle, namely that it measures the HCG hormone levels, Secreated from the start of pregnancy and reaching the maximum between the 7th and the 12th week of pregnancy (it then gradually drops until the end of pregnancy). Furthermore, there are two types of blood tests:
- The qualitative test Simply indicates a positive or negative result.
- The quantitative test assesses the amount of HCG hormone.
The so -called pregnancy hormone, the HCG, Or hormone gonadotrophin chorionic, is secreted by cells causing the placenta from the design. Present first in the blood, HCG hormone is then evacuated via the urine. This is the reason why blood tests and urinary tests allow it to detect it. Its quantity doubles every two days about the 12th week of pregnancy before falling, but remains detectable in blood and urine throughout pregnancy. In normal values, the HCG rate is between 200 to 8,000 IU/L from the second week of pregnancy, to reach at the end of the first quarter up to 250,000 IU/L.