Is the pregnancy test true? Will an iodine test help determine conception? Useful video: How a pregnancy tester works
Time: 23:55 Date of: 17/06/03
Tell me, how reliable are the tests (the kind in the form of a litmus test - you put it in a jar of urine, one strip means you’re pregnant, two – you’re not)??
But my delay was only 2 days, but there is reason to worry about an unplanned pregnancy. I do a test - “not pregnant”. And my period doesn’t start (I’ll say, there are delays, but not often). What to do?!?! How to know for sure? Maybe for an ultrasound right away. So that it won't be too late later!
Time: 01:57 Date of: 18/06/03
It’s been two weeks and a couple of days since my friend’s home was late, I was already preparing to become a dad, but they went today)))
Here's what I found out in two weeks. Yes, tests lie.
Every other day they don't show.
In reality, only ultrasound shows (for sure, that is).
Two days is bullshit. The cycle gets confused due to nerves and worries. And also from physical stress.
If you had sex without rubber bands, then the chances are great (I never do that, which is what I advise you).
If you are sure that you couldn’t get pregnant, then wait...
Time: 02:14 Date of: 18/06/03
The test will really show in 2 weeks. It’s better to go and donate blood - at any residential complex.
Time: 04:18 Date of: 18/06/03
Tests do not lie, but simply the amount of hormone may not be enough at this stage. You can try tests from different companies. False-positive readings are quite rare, but the test may not show up for a long time. But if there is at least a faint line, IMHO there is a pregnancy. On an ultrasound, the fertilized egg may not yet be visible, so it is best to donate blood to check the hCG level.
Time: 07:35 Date of: 18/06/03
An ultrasound won't help, it's better to donate blood. If in a paid clinic, the result is ready in an hour
Time: 08:45 Date of: 18/06/03
Or maybe you got it mixed up? Two stripes mean pregnancy, but one does not.
It’s very rare for an ultrasound scan to show up for such a short period of time. It depends on the device, and on the ultrasound technician himself.
It is best to donate blood for hCG. It is guaranteed that at this stage pregnancy will already be determined.
Time: 08:49 Date of: 18/06/03
And my test showed that I was pregnant, while the ultrasound told me that there was nothing. But the test is not in the form of a cardboard, but more expensive, in a plastic case. And when I did another ultrasound a week later, the pregnancy was confirmed!
Time: 09:50 Date of: 18/06/03
In general, the tests are quite reliable, but it’s better not to be greedy and buy more expensive ones. And if there is any doubt, you should donate blood for hCG
Time: 10:36 Date of: 18/06/03
Quite reliable. If in doubt, donate blood, there will be no questions.
Time: 10:53 Date of: 18/06/03
It may be that during pregnancy it will show its absence. But with two lines, it’s always definitely pregnancy.
Depends on the sensitivity of the test.
If the test is good and your hormonal levels were normal, then most likely the test would show two days after the delay.
I strongly advise you, rather than worry, go to the doctor - a medical test is much more reliable.
IN.
Time: 12:31 Date of: 18/06/03
My test showed that I was on the 4th day of my delay. An ultrasound will definitely not show anything. The most reliable blood test for hCG.
Time: 16:15 Date of: 18/06/03
You need to donate blood for hCG - this is already 100% reliable. An ultrasound will not show anything at this stage, at least from the 10th day of the delay...
My test did not show, although there was 151 hCG in my blood, and after 2 days it only showed 2 bands, when there was 530 in my blood... Although it had a sensitivity of 25 units, i.e. theoretically should have rinsed.
Valerie and little miracle girl 30 weeks
Time: 23:04 Date of: 18/06/03
How many stripes do you have, one or two?
If there is only one line, then there is nothing to worry about, but if there are two, donate blood for hCG
Mistress of the question
Time: 00:05 Date of: 19/06/03
I took the test twice (the second after 2 days). There was only one stripe.
And one more thing about my trouble. THIS happened somewhere on the tenth day of the menstrual cycle. So maybe the egg didn’t have time to mature by that time?
And what day of delay will the ultrasound most likely show?
Time: 08:47 Date of: 19/06/03
Don’t wait for the ultrasound to show it, they tell you - donate blood for hCG! This is a more reliable way to determine pregnancy at such a short time!
And by day 10, the egg might not have matured, especially if you have a cycle of more than 25 days, but sperm live inside for up to 5 days, so conception is theoretically possible.
Time: 10:18 Date of: 19/06/03
It showed that I was pregnant - but it turned out that I was not... so sometimes they are not very reliable... although I then immediately did other tests - but they were all negative!
Time: 17:48 Date of: 19/06/03
Pregnancy - 2 stripes, not 1.
Mistress of the question
Time: 23:57 Date of: 19/06/03
All two times there was one line, and at the beginning I simply made a reservation: one line means I’m not pregnant, you noticed that’s right.
Time: 10:09 Date of: 23/06/03
Regarding the tenth day of the cycle. It all depends on the duration of the menstrual cycle itself. And are you correctly defining its beginning? Let's count together, I was in a similar situation myself)
Time: 11:30 Date of: 23/06/03
Perhaps your ovulation is simply delayed.
But for many of my friends, the test showed pregnancy only at 6-7 weeks of pregnancy... so if the delay is more than a week... then my advice is to go to the doctor
Time: 15:22 Date of: 23/06/03
Yes Yes. The question “is the egg ripe or not ripe on the tenth day?” depends on the length of the cycle.
By the way, how regular is sex life? Can interruptions cause your cycle to go astray? Although I’m not sure, it’s more likely a psychological factor.
Time: 22:39 Date of: 23/06/03
No. It seems to me that the point is not how regular the sex life is. Rather, it all depends on changing partners. For example, when I change my partner, there is DEFINITELY a delay. And how are you?
Time: 09:41 Date of: 24/06/03
Pregnancy tests lie. During the first two weeks of my pregnancy, the test was negative. And the inner feeling was like before menstruation. And I went to the gynecologist - it was discovered that I was pregnant. So my advice to you is not to trust the tests. Donate blood - 100% guarantee.
Time: 11:55 Date of: 24/06/03
By the way, a blood test is more accurate...and it can be done in the early stages, when tests have not yet shown anything
Time: 18:18 Date of: 24/06/03
My test did not show an existing pregnancy after 3 weeks of delay. Here! It’s just that the hormonal background is such that pregnancy cannot be detected... Since then I have not used tests.
Time: 00:19 Date of: 26/06/03
Reliable. You just need to wait for a certain level of hormones; for some this happens right away, then the test shows pregnancy at an early stage, but for others later - then on the 2nd day of the delay it may not show.
Time: 08:18 Date of: 29/06/03
An ultrasound will not show anything right away, only after 4-5 weeks of pregnancy.
Often a situation may arise when it is urgently necessary to determine whether conception has taken place or not, but it is not possible to resort to the help of special tests or examinations. It is in such situations that popular advice can come in handy. An iodine pregnancy test is one of the most common among all other testing methods. Is the test reliable and how to conduct it?
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It is impossible to say that a test with iodine gives a 100% result, but judging by the reviews of many women who conducted home tests using this substance, for the majority it showed a true result.
Jpg" alt=" available tools" width="300" height="200" srcset="" data-srcset="https://dazachatie.ru/wp-content/uploads/2018/03/jod-1-300x200..jpg 660w" sizes="(max-width: 300px) 100vw, 300px">!} The test is carried out using simple available tools:
- a small strip of paper;
- alcohol tincture of iodine;
- urine;
- pipette;
- container – preferably sterilized.
A few words about how this method works. After conception and implantation of the embryo into the wall of the uterus, its cells begin to secrete the hormone hCG. The active substances contained in iodine, like litmus paper, react to changes in the composition of urine.
There are two ways to check for pregnancy, each of which we will now look at.
Method No. 1
We take a sterilized container and fill it with morning urine. After this, use a pipette to drop a few drops of iodine into the urine, trying not to raise the pipette too high above the liquid, so that the drop does not splash when it comes into contact with the urine, but smoothly enters it. Moreover, the accuracy of the testing procedure depends on compliance with this recommendation.
If a drop of iodine remains on the surface of the urine, then the likelihood that pregnancy has taken place is very high. Pregnancy is also possible when a drop of iodine first sank to the bottom, and then rose again to the surface and did not spread. If the iodine drop dissolved, then conception did not take place.
Method number 2 with paper
For the second test, we need a thin strip of paper - at least 5 mm in width. To determine conception using this method, you need to collect urine and carefully dip the edge of a paper strip into it so that it only gets wet and not soaked. After this, very carefully drop a drop of iodine onto a strip soaked in urine, doing this as close as possible to the surface of the paper.
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Features of iodine testing
Determining the fact of possible conception using iodine and paper is not a 100% reliable method, and in order for it to be as truthful as possible, you must follow several recommendations.
If testing is carried out without paper strip, then, as mentioned earlier, it is extremely important to drip iodine carefully. What is this for? The fact is that if a drop falls from a great height, it will simply mix with urine and will not react with it, as required by the test.
It is also important to prepare the biomaterial itself. Urine should be in the morning, since at this time of day it is most concentrated, which means that the likelihood that iodine will react with urine that has changed in composition is very high. In addition, before collecting urine, you must wash yourself, but without any detergents, and thoroughly wipe the perineum so that no water remains in them.
Pay attention to the cleanliness of the pipette and container for collecting biomaterial. If the container is poorly washed, and the pipette has already been used for nasal instillation or other needs, then foreign substances may adversely affect the reliability of the testing.
A test to confirm pregnancy is performed on early stages– up to 10 weeks. You can even use it without waiting for a missed period.
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Advantages and disadvantages
Despite the fact that the reliability of the test using iodine and urine causes some mistrust, one cannot fail to notice its advantages:
- Possibility of testing at home.
- The test requires available tools, which are found in almost every home.
- The method does not require large capital investments.
- Seen more often on relevant forums positive reviews about the veracity of the procedure rather than negative ones.
- There is no need to wait for a missed period.
To be fair, we also note the disadvantages of this method:
- the iodine test is still a folk method, so it is not always able to show a 100 percent result;
- lack of sterility;
- it is necessary to follow the testing rules so that the reliability is maximum - for some this causes a lot of trouble and inconvenience;
- the need to purchase a pharmacy express test or visit a gynecologist in order to confirm or refute the accuracy of the result.
Therefore, each woman decides for herself whether to use this technique or not. Some people prefer more traditional methods, while others trust popular advice. To learn how to conduct a test with a regular test strip, watch the video:
Bottom line
To summarize, let's talk about the most important things:
- A pregnancy test using iodine, according to reviews, is one of the few reliable folk methods that can show whether conception has occurred or not.
- The reliability of testing with urine and iodine is not 100 percent, so it will be extremely difficult to say for sure that the procedure will help determine whether conception has occurred or not.
- Simplicity and a minimal set of “inventory” are one of the most important advantages of this technique.
- Considering the specifics of testing, it is necessary to adhere to the rules of the procedure in order to obtain the most accurate results.
- Also, do not forget that pathological changes in the functioning of the genitourinary system can also affect the result.
- There are others traditional methods definitions of pregnancy. Read about them in our next one.
Do you trust people's advice? Perhaps you know another method of determining pregnancy that can be used at home without resorting to pharmacy rapid tests? Share your opinions and useful tips with us and our readers by leaving comments at the end of the post.
You know, those who believe that a guide to an unfamiliar area should be a person who knows it thoroughly are right. No matter what we say, even our own experience is often only a subjective experience.
Here, for example, is how to determine for sure how long it will take for a pregnancy test to show an accurate result.
Reliability of pregnancy tests according to doctors
So, doctors conducted a small online survey and found that in hundreds of cases, when determining pregnancy, women received false results. And most often due to the fact that they ignored advice about the optimal ten-day period from the day of fertilization of the egg. Before this time, according to doctors, get reliable result- unreal.Even with urine tests, doctors cannot accurately confirm pregnancy before 14-16 days after ovulation. Exception from general rule There can only be those women with a shortened cycle, the second phase of which is less than two weeks.
Do pregnancy tests always show the truth?
Frankly, at first my knowledge of the principle of operation of test strips was limited only to the instructions on the product itself. And there, as a rule, it is written on the packaging that with their help you can find out whether you are pregnant already on the first day. I don’t remember exactly, it seems even from several hours.And, not knowing the other features of the hCG test, I followed exactly these instructions. I admit, I had to use them more than once in my life, and I knew by heart what the strip looked like when pregnancy was out of the question, and how when the suspicions were justified.
I used tests on the second or third day and within a week from the expected moment of conception. And even if, as a result, two stripes were not clearly visible, during pregnancy he behaved differently, and the location of the second stripe became cloudy. And this diagnosis, as a rule, was justified.
But those who say that we are all individual are right. And what works for some may fail for others. When I read the reviews different women, I was convinced of this again.
Therefore, I agree that specialists have a much better understanding of everything related to medical supplies. However, doctors know much more about the principles of operation of tests.
So, they claim that you can tell for sure based on the test results whether you are pregnant or that you are pregnant based on the results of such a test only from 14-15 days after ovulation. This is not written on the packaging for the tests, but doctors insist that this is so.
Perhaps it is worth saying that this method of diagnosing pregnancy is not entirely justified in case of an irregular cycle. And any menstrual cycle disorders increase the likelihood of problems with conception. Then you just need to consult a doctor, and possibly treatment that will bring your hormonal levels back to normal. And again, changing your habits - lifestyle, nutrition, physical activity - plays an important role in this sense.
It’s good if pregnancy is desired and timely. But if pregnancy is not desirable for some reason, you need to find out about it earlier. And, as doctors note, it is also advisable to have it in time within two weeks.
So why not trust the authors of the instructions for pharmacy tests? At least, for a final and reliable conclusion regarding pregnancy, you need to wait at least ten days. Or go see your gynecologist. Often, already from the first days, the doctor will be able to talk about pregnancy by changes in the color of the uterus and vagina, and softening of the uterus.
Determining pregnancy is not difficult, but with the advent of home pregnancy tests, it has become much easier. One of their main advantages is that the “interesting position” can be determined already in the early stages, a few weeks after conception. This means that if a girl decides to have an abortion, it will be done in the early stages with minimal negative consequences for reproductive health.
How the tester works and works
The pregnancy test is a special strip. The principle of its operation is simple: when human chorionic gonadotropin is present in a biological fluid (urine or blood), the test strip instantly reacts with a color change, which is manifested by two stripes - the test is positive. In this case, there is a high probability that the girl is pregnant. In the absence of the hormone, there will be no changes.
Important! To carry out the test, take a morning portion of urine, since the urine accumulated overnight is more concentrated. In this case, a positive result will be the most reliable.
What is human chorionic gonadotropin
Human chorionic gonadotropin or hCG is a special hormone that is produced in the body only by pregnant women. It is synthesized by the trophoblast and placenta after conception, therefore, by definition, hCG cannot be synthesized in non-pregnant women.
HCG begins to be released into the blood after conception, from the moment the fertilized egg is implanted into the wall of the uterus. From this moment on, the concentration of the hormone in the blood increases. The highest level of hCG is determined in the blood and urine by the end of the 3rd month of pregnancy, then its concentration decreases.
Important! It must be remembered that for at least a month after childbirth, hCG is detected in a woman’s biological fluids, which gives a false positive pregnancy test result.
The main function of human chorionic gonadotropin is to maintain the life and functioning of the corpus luteum. This is important for preserving the implanted fertilized egg in the uterus and preventing its detachment, since the corpus luteum immediately after conception produces the main hormone that maintains pregnancy - progesterone. When the concentration of this substance in the blood decreases, there is a high risk of spontaneous interruption.
When the test gives correct results
After conception, the test will be positive only when a certain concentration of the hormone is reached in the blood or urine, to which the test strip you have chosen is sensitive. In the first days of implantation and another 1 week after conception, it is useless to conduct research, since it will not be informative.
How to use the tester
Today, a wide variety of pregnancy tests are available. Their mechanism of action is the same, only the method of application differs. To avoid mistakes, please read the instructions for use before use. Below we describe several of the most common types of tests.
Test strips
These are the first representatives of express pregnancy tests that appeared on the market back in the 20th century. They are still popular today. They are distinguished by their low price, and most women know how to use them well. 2-3 weeks after the expected time of conception, morning urine is collected in a separate container and the test strip is dipped in there for at least 10 seconds. After this, the result is expected within a few minutes. If the second strip does not appear, the result is negative. When the second line appears, the result is regarded as positive, most likely pregnancy has occurred.
Tablets
They are practically no different from previous tests, with the exception that the strips here are placed in a plastic frame. They do not need to be lowered into a container with urine, since they have a special “window” into which 1 drop of biological fluid is dropped (a pipette is included in the kit). The timing is the same: 2-3 weeks after the expected date of conception. Positive and negative results are assessed according to the same principle.
Jet methods
They are one of the easiest to use, and at the same time are highly sensitive to hCG in both blood and urine. To use them, you do not need to collect urine in a jar. The sensitive part of the test strip is simply placed under the stream during urination and the result is assessed. The peculiarity of their use: they use not only morning, but also evening urine. The sensitivity of the tests is so great that it can detect the presence of hCG even before the onset of expected menstruation, which means it will be positive within 1-2 weeks after conception.
Electronic tests
Electronic tests are the last word of advanced science on the Russian market. The sensitive part is lowered into a container with biological fluid or placed under the stream during urination. If the result is positive, a plus will appear in the “window”, which will speak in favor of pregnancy. If negative - minus.
Important! Even if the paired stripe appears fuzzy or dim, the presence of pregnancy should not be ruled out. Most likely, the required concentration of hCG in the blood and urine has not yet reached the threshold value. Test again in a couple of days. The appearance of a clear, bright stripe indicates a positive result - you are pregnant.
Which method is the most reliable?
The most reliable and reliable method is a rapid blood test from a vein to determine hormone levels. Here, hCG appears first of all, and only then in the urine. When choosing other tests, be guided by your preferences, whichever is more convenient for you. If it is more convenient to use inkjet tests, buy them. If you don’t want to fork out money for a test and it will be more convenient for you to collect urine and put the tester in there, purchase the most common test strips.
Results error: is this possible and when?
False positive two stripes are detected in the following cases:
- History of previous abortions and miscarriages within a month.
- When taking hormonal contraceptives containing this substance.
- For some malignant neoplasms.
Useful video: How a pregnancy tester works
Positive test after termination of pregnancy: what to do
After medical termination of pregnancy, human chorionic gonadotropin decreases in the blood gradually, so after the abortion the test will be positive for at least 2 more days. If two stripes appear 2 days after termination of pregnancy, do not panic. Buy another test and carry out a follow-up test 2-4 days after the first one. If the control test results are positive, immediately notify your gynecologist in order to conduct a full diagnosis of your condition.
A delay in menstruation for several days gives rise to the thought of pregnancy in a woman’s head. Usually such a woman goes to the pharmacy on her way home or sends her husband there for a pregnancy test.
After all, there are two ways to find out the truth about your condition: go to a gynecologist or do a test. The latter option is not only cheaper and more pleasant, but also requires less effort and time. It is thanks to this that the tests have earned wide distribution, but the reliability of pregnancy tests is sometimes justifiably criticized.
Everyone knows that a test from the same manufacturer in the same situation can give different results. This is due to the storage conditions of the product and its correct use. The test may not work if it is performed too early, etc. But few people know that pregnancy tests are completely pointless if a woman takes diuretics for kidney or cardiovascular diseases. Also, tests are practically unable to detect ectopic pregnancy.
Very often, a pregnant woman feels this with some kind of sixth sense, so if such a feeling appears, and the reliability of pregnancy tests is in doubt, it is better to consult a gynecologist or take a urine or blood test. Using these methods, you can find out about pregnancy just a week after fertilization, and the result will be much more reliable than a variety of products for determining pregnancy.
Home pregnancy tests are based on detecting gonadotropin (the pregnancy hormone) in the urine. But quantities sufficient to be determined by the test are produced in the body, as a rule, two weeks after conception. If the test shows two stripes in too short a time, then there is little reason for joy. There are situations when human chorionic gonadotropin is produced in response to the development of a tumor. With this disease, even for men, pregnancy tests will show a positive result. The reliability of pregnancy tests is affected by hormonal drugs with hCG, alcohol, and drugs.
Many women try to protect themselves from mistakes by using several different tests at once. And it is right. In addition to the absence of menstruation, pregnancy is indicated by soreness and enlargement of the breasts, an increase in the morning temperature in the rectum to 37 degrees, and some increase in urination. We must not forget about such standard symptoms as nausea, irritability, increased fatigue and a change in taste preferences in the most unexpected direction.
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