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How many days pregnant can be confirmed by a urine test?

Published in Pregnancy Testing 1 min read

A urine test can typically confirm pregnancy about 10 days after conception.

Understanding Early Pregnancy Detection

Home pregnancy tests detect the presence of human chorionic gonadotropin (hCG) in urine. HCG is a hormone produced after a fertilized egg implants in the uterus.

  • Early Detection: For many tests, hCG can be detected in urine approximately 10 days after conception. However, the accuracy increases with time.

  • Missed Period: Taking a test after you miss your period (typically around 14 days after conception) reduces the chance of a false-negative result. This is because hCG levels are generally higher and more easily detected by this point.

Factors Affecting Detection

Several factors can influence when a urine test can accurately detect pregnancy:

  1. Sensitivity of the test: Different pregnancy tests have varying levels of sensitivity to hCG. More sensitive tests can detect pregnancy earlier.
  2. HCG levels: HCG levels vary from person to person and increase rapidly in early pregnancy.
  3. Timing of implantation: The timing of implantation can vary, which affects when hCG production begins.

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