Is a pregnancy with a negative test a reality or a fairy tale? Next, we have to understand this issue. He is puzzled by many girls - both planning to become mothers, and those who are afraid of an "interesting situation." In reality, everything is not so easy. Therefore, it is necessary to study the issue from different angles. Below is information that will help shed light on what is happening.
About the test
Can the test be negative during pregnancy? To answer this question, we first need to understand how the corresponding device works.
Any pregnancy test is a kind of device with a receiver, or strip strip. It is enough to urinate on him and wait a bit. The reagent applied to the measuring device will react with urine. This will lead to a response and to the manifestation of a particular result. Usually one line on the test - there is no pregnancy, and two - there is.
Important: the reagent will respond to hCG levels in the woman’s urine . This hormone begins to be produced during pregnancy extremely actively.
If the test is negative, is pregnancy possible or not? Next, we consider all the layouts encountered in real life.
The probability of false testimony
Unfortunately, the answer to the previously asked question is not possible. The fact is that home pregnancy tests can really be wrong in certain circumstances. What does it mean?
Pregnancy with a negative test is possible. As well as a positive result on the measuring device, provided there is no "interesting position". Therefore, some girls prefer after a home diagnosis to consult a gynecologist or donate blood for hCG. So it will turn out to judge the occurrence of an “interesting situation” most accurately.
Sensitivity matter
The reasons for a negative pregnancy test are diverse. Below we will consider the most popular scenarios.
When planning to purchase an appropriate device in a pharmacy, a woman needs to pay attention to the sensitivity of the device. The success of the early diagnosis of an "interesting situation" will depend on this indicator.
The lower the threshold value, the faster the girl will see the correct test result. The bulk of the measuring instruments has a corresponding indicator at the level of 25-150 mME. In the first case, the test is the most sensitive.
Important: some measuring devices have a sensitivity of 10 mME. Manufacturers claim that such products will be able to determine the position of the girl before the delay of menstruation. In real life, this is not entirely true.
Earlier time
A negative pregnancy test with delayed menstruation is a fairly common occurrence. And he should not be afraid.
Based on the foregoing, we can conclude that a woman just needs to buy highly sensitive measuring instruments. But that is not all.
A false negative indicator on the device appears when the diagnosis is done too early. As we have already said, the reagent shows one or another result after contacting with urine with hCG. Early diagnosis leads to the test showing one strip. Why? The level of hCG is too low to be determined using home-based diagnostic methods for women. Therefore, it is not worth rushing to check.
Important: doctors recommend that you refrain from the home method of checking pregnancy until menstruation is delayed. If on the first or second day only 1 strip is visible, you need to wait a couple more days. A week after the delay of menstruation, tests, as a rule, already easily show an "interesting position".
Misuse
But this is not always so far. Sometimes girls may encounter a situation in which pregnancy will not be confirmed by home tests.
For example, this is possible if you violate the instructions for the use of diagnostic devices for women. Such a circumstance leads precisely to false negative readings.
It is important to remember the following rules:
- collect urine only in sterile containers;
- it is better to test immediately after waking up in the morning;
- try not to check in the evening;
- do not drink a lot of fluids shortly before home diagnosis;
- Do not urinate before checking for 4 hours, and preferably 6-8.
In addition, the girl must clearly follow the instructions on the box with the device and do not put the test strip on a damp surface. Reuse of the device is also prohibited.
Defective goods or delay
A negative pregnancy test may appear when using low-quality or expired devices. A marriage of production cannot be ruled out either. After all, any product may encounter similar circumstances.
That is why it is recommended to buy different types and firms of tests, as well as monitor the shelf life of the device.
Important: most often incorrect readings show strip strips. Therefore, it is better to use inkjet, electronic or tablet devices. They are more expensive, but they are more accurate and reliable.
The drugs are to blame
Pregnancy test negative, but no monthly? As we already said, in this case, the woman needs to wait a bit, and then repeat the check. It is possible that the situation arose due to early diagnosis and low levels of hCG in the blood.
Nevertheless, a false negative result on a test device may occur if a woman takes any medications. Typically, a situation occurs when a girl, shortly before the diagnosis, drank a medicine or diuretic. There are cases when even after drinking a large amount of water or green tea, you had to see one strip in real pregnancy.
Accordingly, it is desirable to refuse to take medication. And from drinking plenty of time for some time before checking too.
Diseases and Diagnosis
A negative pregnancy test with a delay cannot be ruled out if the woman is sick. Inflammatory processes and pathologies of the body often distort the result.
Most often, the veracity of the testimony of a pregnancy test is affected by diseases that cause malfunctions of the internal organs (say, kidneys). This is due to the fact that in the urine during pathological processes will contain very little hCG.
Important: sometimes it is a negative test that forces the girl to conduct a comprehensive body check. It is advisable to check for certain diseases in advance, before planning the child.
Pathology position
Pregnancy with a negative test is very real. And sometimes a similar situation arises due to a variety of impaired fetal development.
For example, a false negative test will be at:
- abnormalities of the fetus;
- placental insufficiency;
- missed pregnancy.
In addition, a woman may be faced with the situation under study if there is a threat of miscarriage. Therefore, when planning a child, you need to carefully monitor your health. And if the girl suspects pregnancy with a negative test, it is better to go to the gynecologist, an ultrasound scan and donate blood for hCG.
Ectopic pregnancy
Another scenario is the appearance of an ectopic pregnancy. Usually a similar picture leads to an abortion or spontaneous interruption of an "interesting situation".
Pregnancy with a negative test may be an ectopic. Meter readings will be false because urine contains a low level of hCG. Delay? Is the test negative? Can there be a pregnancy in this situation? Yes, and such situations are not so rare.
Important: with this form of pregnancy, a girl can see a "ghost" - a weak second strip with fuzzy lines. She will be pale in color. If the situation recurs after a second check in a few days, you need to hurry to the doctor. Most likely, this is an ectopic pregnancy. And she will have to be interrupted as soon as possible. Otherwise, serious consequences may be encountered.
Other
1-2 weeks of pregnancy? Is the test negative? This is a normal occurrence. Ideally, a diagnosis should be made a week after a delay in menstruation. Then there should not be any false results. But for a more accurate diagnosis, it is better to go to an ultrasound or a gynecologist. Do not forget about the blood test either.
Unfortunately, the absence of menstruation and a negative pregnancy test can occur for other reasons not related to the "interesting situation". When does this happen?
For example, with:
- inflammatory processes in the body;
- chronic diseases (mainly the genitourinary system);
- recent antibiotic treatment;
- infertility treatment;
- hormonal failure;
- late ovulation;
- anovulation;
- menopause
- intermittent menstrual cycle.
In addition, acclimatization can cause a delay in menstruation. Long trips, change of time zone, fatigue of any type - all this negatively affects the body. The girl will face a delay in menstruation, but the test will be negative.
Important: the situation under study should not cause panic in adolescence, after an abortion or childbirth. During these periods, the menstrual cycle is just beginning to take shape. And therefore, pregnancy with a negative test and delay will not take place.