As the urine travels through the indicator window it might look like both lines are present, or that a plus sign is present. However, this does not mean that you are pregnant—it simply means that the test is working. You must wait until the end of the time allotted in the instructions to read the results of your test—which is usually one or two minutes.
Use a stopwatch or a timer app on your phone to keep track. While you don't want to read the results of your pregnancy test too early, you also don't want to way too long. If you take a test when you wake up , then hop right in the shower, you might get on with your day without checking the test again. The instructions will usually give you the window in which the test results will be accurate—usually about five minutes.
After this time has gone by, the test might produce a faint positive when in fact there was no hCG detected in your urine. If you've read the results within the timeframe in the instructions and decide to keep the test, don't read into any change in the result in the hours or days after you take it.
There are very few instances where a positive pregnancy test is wrong. A false positive pregnancy test is more likely to be caused by user error rather than a problem with the test. A negative result, on the other hand, may happen if you took a test too soon. If you are not pregnant, a false positive pregnancy test result is unlikely. The more likely explanation is that you had a chemical pregnancy which produces enough hCG to turn a pregnancy test positive but miscarries shortly after or a very early miscarriage.
If you get a positive pregnancy test, assume that you are pregnant which includes making an appointment with your health care provider to have the result confirmed. There are some situations where you would want to take another pregnancy test after getting a negative result.
If the negative result was unexpected or you still do not have your period within a week of taking the test, you will want to retest. Sometimes, a negative test might not truly be a negative test—it might just be early for the test to turn positive. This is why most pregnancy tests recommend retesting after your body has had more time to produce detectable amounts of hCG in your urine. There are several reasons that home pregnancy tests can produce inaccurate results.
The good news is, these errors can be avoided if you follow the instructions carefully. While most errors are related to user mistakes and not a problem with the test itself, purchasing a quality test makes it less likely it will have defects or be expired.
If you get a test result that is unexpected, follow the recommendations provided by the test for retaking it usually within a week. It's also important that you contact your health care provider to confirm the result you get with a home pregnancy test. Get diet and wellness tips to help your kids stay healthy and happy. Gnoth C, Johnson S. Strips of hope: Accuracy of home pregnancy tests and new developments. Geburtshilfe Frauenheilkd.
We found that it gives a clear result quickly, and its ergonomic design makes the handle easier to hold onto compared with the wands on comparable tests. Cheap and simple, you can blow through a ton of these strip tests without spending much. These are thin strips that you dip in a cup of pee. These strips cost about half as much as comparable tests and less than a tenth of the cost of a single manual test.
For this guide, we interviewed Laurence Cole, PhD, a researcher who has long studied home pregnancy tests, and Dr. Home pregnancy tests measure the small amount of hormones that the body produces when a fertilized egg is implanting and beginning to grow.
Specifically, they contain antibodies that can pick up the presence of human chorionic gonadotropin hCG in pee. Two types of hCG are important in early pregnancy. The first, hCG, is a hormone responsible for forming the mechanism by which the placenta gives nutrients to the fetus. The second, hyperglycosylated hCG or hCG-h , is a whole different, unrelated molecule. In very early pregnancy weeks three and four only hCG-h is present, Cole said.
Amounts of this hormone double roughly every 72 hours in early pregnancy, reaching their peak around eight to 11 weeks, then level off for the remainder of the pregnancy. Levels of hCG in pee can vary a lot as well. This is a pregnancy that fails to develop beyond the earliest stages, often resulting in a miscarriage around the time menstrual bleeding would be expected. False negatives, where you are pregnant but get a negative reading on a pregnancy test, are much more common.
According to Dr. If you think you may be pregnant and take the test prior to a missed period and get a negative result, wait a week and take the test again. To obtain the most accurate results, test after missing an expected period.
The longer you wait after a missed period, the more accurate the test becomes. Pregnancy tests should be four things: sensitive enough to pick up on pregnancy early on, easy to use, easy to read, and relatively cheap.
Is this combo too much to ask for? Luckily, there is a wealth of scientific data on the accuracy of home pregnancy tests. That being the case, we did not run our own accuracy tests but instead relied on the experts. These tests also detect hCG-h but not as well as First Response. In addition to accuracy, we considered test usability, readability, and cost. Some home pregnancy tests require that you pee in a clean cup then dip a strip into the urine.
Others are housed in plastic wands and have absorbent tips that you can pee directly onto, or dip if you choose. We considered both test types, finding the latter easier to use and read.
After taking a few digital tests apart, we learned that they actually use the exact same strips you find in manual tests, only the digital test has a sensor to detect the darkened line for you—often about a minute after most people would be able to eyeball it themselves using a manual test.
However, readers have been asking us about cheap, strip-type tests you can buy in bulk online, so we compared these to determine the best choice in this category despite the fact that Cole told us that these are generally less sensitive than the more expensive stick tests. Design is important too—how easy it is to use and how easy it is to read. I took six of each of our contenders and put them through the paces. I tested them multiple times using both the midstream and pee-in-a-cup-and-dip methods.
Since I was nine months pregnant at the time of testing, I dipped the various strips in water and, in one case, had my husband pee on one to confirm known negative results.
I also diluted my own urine down by 1, times in water to see what a barely positive looked like. In short: I totally abused these things. Two female staff members, neither of whom was pregnant at the time of testing, also tried each of these in both the midstream and dip methods and added their feedback. In our experience, none of these tests gave what are known as evaporation lines , which are lines that can sometimes appear on manual tests and be mistaken for a positive result.
In addition, in our tests it gave the clearest positive reading to a very dilute solution of pregnancy-positive pee. Results came in quickly, taking only 40 to 45 seconds on average. To mimic the earliest days of pregnancy, I prepared a very dilute solution of hCG-positive urine.
As you can see in the photo, the First Response manual test showed a very clear positive response with a strong fuchsia line, while the other pregnancy tests barely registered faint blue marks. False-negative results are much more common than false-positive results. A false negative result usually occurs because the pregnancy test was taken too early to detect the pregnancy.
If you get a negative result, but you still think you could be pregnant, take another test in a few days. False-negative results can also occur for other reasons such as using urine that is too diluted and failing to follow the directions precisely. A false-negative result can also come about from an ectopic pregnancy , a serious condition that requires immediate medical treatment.
Appointments are available at Avail NYC for a no-cost, self-administered pregnancy test. Our compassionate advocates will answer your questions with unbiased and accurate information. We empower you and walk with you each step of the way, so you can examine your options and make an informed decision about your unexpected pregnancy. Avail NYC exists to be a safe haven for women and men facing an unexpected pregnancy or seeking support after an abortion. We are not a medical provider.
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