Do Pregnancy Tests Turn Positive Hours Later? Understanding Evaporation Lines

Learn why pregnancy tests may show late positive results and how to interpret evaporation lines correctly.

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Pregnancy tests can show a positive result hours later due to evaporation lines, which can be mistaken for positive results. Read the result within the recommended time frame to avoid confusion.

FAQs & Answers

  1. What are evaporation lines in pregnancy tests? Evaporation lines are faint lines that can appear on a pregnancy test after the recommended reading time, often causing confusion with positive results.
  2. When should I check the results of a pregnancy test? It's best to read a pregnancy test within the time frame specified in the instructions, typically around 3-5 minutes, to ensure accuracy.
  3. Can I rely on a pregnancy test reading after a couple of hours? No, it's not reliable as the result may change due to evaporation; always follow the manufacturer's directions for accurate results.