False Negative Pregnancy Test

False negative pregnancy tests can be very common for women who insist on testing their urine for HCG extremely early in the luteal phase. Following ovulation, at least 6 days must elapse for implantation to occur, maybe more. After that, the fertilized egg begins to output HCG, but it cannot immediately be detected in the urine because it needs to reach sufficient concentration first. Finally, depending on the sensitivity of the test, it may be necessary to wait for a missed period to avoid a false negative pregnancy test.

Because of today’s marketing that encourages women to test for pregnancy as early as physiologically possible, the prevalence of false negative pregnancy tests is on the rise. Although home pregnancy tests are now more sensitive than they were 20 years ago, there is still a minority of the female population that still would obtain a false negative pregnancy test even with a very sensitive test. This is because implantation does not occur on the same day for all women, and in some cases, it may be almost 2 weeks until HCG is produced, even at undetectable levels.

In addition, may women are delaying their conception efforts until after they attain a certain level of educational status or career success. In these cases, it becomes much more difficult to conceive without fertility intervention, and many of these women might test early hoping for a false negative pregnancy test. Instead, these women often end up with true negative pregnancy tests and have to plan fertility-focused intercourse for a year or more before succeeding in a pregnancy. By this time, couples who are trying to conceive may have built up a stockpile of inexpensive pregnancy tests that they use for the second full week of the luteal phase. Indeed, many couples expect a few false negative pregnancy test results prior to the true positive, but they would rather spend the extra money testing early in order to detect the pregnancy as soon as possible.

Home pregnancy tests may discuss the likelihood of a false negative pregnancy test in their instructions, but they usually just advise taking a new test in a week or so. The marketing ploy for early detection of pregnancy is to ensure that the newly pregnant women takes the utmost care of her health to sustain and nurture the pregnancy. However, this is silly because most couples who are seriously trying to conceive are already practicing very healthy lifestyles in order to maximize their fertility.

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