False Negative Pregnancy Test
One of the most beautiful period for any couple, especially for a woman is to get pregnant. Making your body prepared for nine months and delivering a healthy baby is something that every woman waits for. One of the signs of getting pregnant is the missed period. In case, if you miss your regular period post-marriage, then it is the sign of getting pregnant. Today, there are handy tools, which you can use to test pregnancy at home. However, sometimes, a false negative pregnancy test can happen due to some reasons. If you face such situation, then you need to contact your doctor.
When must you take the Home Pregnancy Test?
Many home pregnancy tests device claim to be accurate as early as the first day of the missed period. You might get accurate results if you wait until after the first day of the missed period. This is because shortly after the fertilized egg attaches with the uterine lining, the placenta forms and produces hormone human chorionic gonadotropin (HCG). This hormone enters your bloodstream and urine.
Furthermore, during the early pregnancy period, HCG concentration increases rapidly. The earlier you take the pregnancy test, the harder you will get the result. You need to keep in mind that the timing of the ovulation varies month to month. The fertilized egg implants in the uterus at different time. This also affects the timing of HCG production.
Causes of Negative Pregnancy Test with no period-
As mentioned above, a woman can face a delayed period, but still can have a negative pregnancy test. There could be many reasons why your period could be late, even if the pregnancy test remains negative-
Low Hormone Levels-
In case you are trying to get pregnant, you will still get.
In many cases, the levels of pregnancy hormone Human Chorionic Gonadotropin (HCG) in the early stage of the pregnancy. According to one study, home pregnancy tests need to detect HCG levels above 25 million- units per milliliter. This is to achieve a 99 percent accuracy rate. In many cases, there can be 13-day different when ovulation occurs. Pregnancy bleeding, recent hormonal contraceptive use or breastfeeding can all interfere with accurately knowing your dates.
Although it is rare, the ectopic pregnancy can also lead to negative on a pregnancy test. The percentage of these cases is less than 3 percent. In the case of negative pregnancy result, some of the symptoms are-
- Dizziness or lightheadedness
- Bleeding or spotting
- Nausea and vomiting
Change in the Lifestyle-
One of the other factors of delayed period and negative pregnancy test is the lifestyle factor. Stress, obesity, and malnutrition are some of the reasons behind the delayed period. Your cycle can fluctuate if you drink too much caffeine or do not eat enough food. If you have a sudden change in the lifestyle, then there is a high chance of period being delayed.
There are many cases where breastfeeding causes irregularities in the cycle. Even the baby arrives and the period returns, there is a chance that cycle may arrive late. However, the feedings may change as the baby grows.
Medical conditions like polycystic ovary syndrome (PCOS) or thyroid problems, causing irregular cycles. Some women witness light periods, and some may have heavy periods. Menopause, in many women, may start at the age of 50 and in some cases; it can begin prematurely before the age of 50. In case, you missed the period for more than 90 days but still have not got pregnant, its time you need to speak to your doctor.
Flaws in false Pregnancy Negative test-
According to the makers of pregnancy tests, tests taken in the very first week after the conception can get you negative results. This is because pregnancy hormones have not raised high. There are chances that the degraded form of hormones is found in the urine and some devices. The amount of the degraded form is called an HCG core fragment. The more of the fragmented hormone around, more likely the first antibody will capture the fragment instead of the hormone.
The false negative pregnancy test problem is common, and it depends on the device you use. Different women use different antibodies, and some are better at discriminating full hormone.
Different types of pregnancy tests-
The most common type of pregnancy test is placing the end of the dipstick in the urine stream and dip in the container of the collected urine. After a few minutes, the dipstick will give the result. The result will be either plus or minus. If you are doing it for the first, then do check with the doctor.
Some of the pregnancy tests are quite sensitive. You can discuss with your doctor to know more about the home pregnancy test.
Digital pregnancy tests-
One of the pregnancy tests you can undergo is a digital method, which checks your urine for the hormone human chorionic gonadotropin, which is produced in the body. The device looks like a pen-shaped instrument instead of the traditional stick. The digital device gives the result within 3 minutes and informs if the test is done correctly or not. The accuracy of the digital pregnancy test depends on the timing. The inaccuracy of the test depends on the improper usage of the product. It is highly advised to use the device early morning when the HCG concentration is highest and follow the package instructions precisely for results to be accurate.
Blood Pregnancy Tests-
There are two types of blood pregnancy tests-
- Qualitative HCG test helps to check the presence of HCG in the body. Doctors usually order these type of tests to confirm pregnancy as early as 10 days after the period is missed.
- Quantitative HCG test helps in measuring the amount of HCG available in the blood. It can even find if the HCG is low in level.
Accuracy of the home pregnancy tests-
Many home pregnancy tests claim 99% accuracy. The result may differ as per the diagnosis and other health issues. In case, the result is negative, but still, you think you might be pregnant.
What must you do if the result is positive?
If the result is positive, and you have planned to have a baby, take another test to make sure you are pregnant. Before reaching the 8-week mark, check out with the doctor to know some prenatal care advice for a healthy delivery of the baby. Check with the doctor if any lifestyle change you need to do and diet you need to follow. In case you did not plan for the same, then check with the doctor on how to end the pregnancy.
What if the result is negative?
If the result is negative, but you need to have a baby, then try conceiving again. There are many cases where the woman does not get pregnant with sexual intercourse due to the period. You can use the ovulation calculator or track the cycle calendar. You can even undergo the fertility test to find the right reason behind not getting pregnant.
If your test result is negative and did not plan to get pregnant, take another test to ensure the result is accurate. In case, you got pregnant due to unprotected sex, make sure to get the birth control to avoid future pregnancy scares.
The home pregnancy test is generally accurate. However, there are also chances of the false negative pregnancy test. Depending on the results, you can connect with your doctor to take the right steps.