A positive pregnancy test in the afternoon is likely accurate, especially if it's after a missed period, but morning urine (first thing awake) is best for detecting low hCG levels early on because it's less diluted by fluids, so for absolute certainty or if testing very early, try again with first morning urine or see your doctor for confirmation. Read the test within the time window for accuracy, as delayed lines can be misleading.
Some very sensitive pregnancy tests can be used even before you miss a period. You can do a pregnancy test on a sample of urine collected at any time of the day. It doesn't have to be in the morning.
Causes of false-positives
For example, testing too soon, not following the test instructions, or reading your result after the three to five-minute testing window has passed can all lead to a false-positive. Other potential causes of a false-positive result include: Chemical pregnancy. Ectopic pregnancy.
If you leave the test out for too long before reading it, you may end up with what looks like a positive result. This might actually be an evaporation line, which is a faint, colorless line that appears in the test window when the urine dries.
It's perfectly normal for your pregnancy test results to change from negative to positive, if you were getting false negatives. That would likely be if your earlier tests were too early for your body to have produced enough hCG to turn a test positive yet. As the early pregnancy continues, tests will become positive!
Your urine might be diluted, skewing the test's results. You can dilute your urine sample if you're drinking too many liquids; this is why experts recommend testing first thing in the morning. Some pregnancy tests have lower sensitivity levels, so they'll show fainter lines earlier on.
Drinking a lot of water before taking a pregnancy test can dilute your urine so there's not enough hCG for the test to detect, resulting in a false negative. You don't want to reduce your fluid intake – drink water as you need to throughout the day – but don't down a huge bottle of water right before testing.
A 2-hour urine hold pregnancy test is a helpful way to get a more accurate result by ensuring that your urine has enough of the pregnancy hormone, hCG, for the test to detect.
The four main causes that may lead to a false positive pregnancy test include a chemical pregnancy, a recent miscarriage, medication or a defective test.
10 minutes may not seem like a long time, but it's enough for an evaporation line to appear. This line may look like a positive result, but it's not. If you still think you may be pregnant, throw out this test and use a new one.
In particular, read the test within the stated time as, beyond this point, it may no longer be accurate. This is because evaporation lines tend to manifest after the recommended reading time, usually within 10 minutes. A genuine positive line should appear more quickly within the specified timeframe.
A test will only show a false positive if you have hCG in your system for another reason such as you were recently pregnant, are taking fertility medications containing hCG, or if you have a medical condition, like some rare ovarian cysts.
Even if you are pregnant with twins, there's no guarantee you will produce hCG any sooner than if you were pregnant with one baby. But because your levels may be higher, it is possible to detect a pregnancy slightly earlier due to higher levels of hCG.
Taking a pregnancy test after a missed period is standard practice, but the timing of the day, morning, afternoon, or evening, can affect accuracy, especially in early pregnancy. Experts generally recommend taking a urine-based pregnancy test first thing in the morning, using your first urine of the day.
A chemical pregnancy's main symptom is a positive pregnancy test followed by a period, often appearing as a late, heavier period with more intense cramping or spotting, sometimes with clots, occurring shortly after implantation fails. Many women don't notice it, mistaking it for a normal or slightly unusual period because it's so early, but the key indicator is a positive test then a negative test a few days or weeks later, without typical pregnancy symptoms like morning sickness.
Can a test turn positive overnight? Yes, but it is not a true positive. Tests should be read within the time given, usually five to ten minutes. A line appearing hours later is usually just an evaporation line.
Pseudocyesis, more commonly known as phantom pregnancy or false pregnancy, is a very real but rare condition where a person experiences many of the physical and emotional symptoms of pregnancy, despite not being pregnant.
An ectopic pregnancy is when a fertilised egg implants itself outside of the womb, usually in one of the fallopian tubes. The fallopian tubes are the tubes connecting the ovaries to the womb. If an egg gets stuck in them, it won't develop into a baby and your health may be at risk if the pregnancy continues.
A false-positive might happen if you had a pregnancy loss soon after the fertilized egg attached to the uterine lining. You also may get a false-positive if you take a pregnancy test soon after taking fertility medicine that contains HCG .
Take the sample for at least 7-10 seconds, to ensure that an adequate sample is collected by the testing device. (Another technique is to collect the urine into a clean container and dip half of the absorbent pad for at least 10 seconds.)
The first morning urine is the urine you void when you get up for the day. If you get up during the night, it is not necessary to catch that urine.
While urinating, place only the absorbent tip in your urine stream for the allotted time. Avoid getting the plastic housing of the test stick wet, whether you're peeing on a stick or dipping it in a urine sample.
Although a pregnancy test is the most reliable way to be 100% sure, a regular menstrual cycle and the absence of pregnancy-related symptoms may suggest that you are not pregnant, but they are not conclusive. But, as mentioned earlier, it is best to rely on a pregnancy test to be completely sure.
If you use pregnancy tests correctly, the results are 99% accurate. Contact your healthcare provider if you have questions about the results of your pregnancy test.