It is recommended to not read a pregnancy test after the recommended time frame (10 minutes) as most brands have a possibility of evaporation lines." The reason for this is due to the urine evaporating if left for too long it can leave a faint line which can be mistaken as a positive test. You might want to take your mind off the nervous wait, but don't wander off and forget leaving the test 'cooking' for too long can give a false positive result. "You've urinated on the stick, and are now eagerly awaiting. You've left the test sitting too long before looking If you have a positive test result at home and start experiencing abdominal pain, bleeding or feel unwell, you must see a doctor as soon as possible." 7. The foetus is most likely in one of your fallopian tubes (the tubes that carry the egg to the womb) and this is a medical emergency. Sadly, though, this pregnancy is not in the right place. "An ectopic pregnancy can result in a positive reading on a pregnancy test, and this does indeed mean you are pregnant.
For this reason, it is always recommended you wait a week or so after you miss your period to take a pregnancy test," Dr Preethi continues.
For some women, this false positive result can be emotionally draining. This can still cause a rise in HCG levels despite there being no viable pregnancy. "This is where a sperm and an egg meet but the fertilised egg - known as an embryo - is unable to implant in the womb. The medication could increase this level slightly, bringing it into a detectable range, hence the possibility of a false positive result emerging from the test." 5. "These medications could theoretically lead to a false positive result if a woman has experienced either a chemical pregnancy (more on that below) or a miscarriage, both of which would leave a small, undetectable level of HCG in the woman's bloodstream. These include benzodiazepines taken for anxiety (diazepam, alprazolam), diuretics taken for excess water retention (furosemide) and even antihistamines such as promethazine. "Some medications can alter the level of HCG in the blood. We're pretty sure we've answered your question to 'Can a pregnancy test be wrong?' by now, but if not, fun fact: even your medication can meddle with your result.
This can result in a false positive test result." 4. "If you have had a recent miscarriage, the HCG level can stay in your bloodstream for several days.
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