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Pregnancy test calculator

Guidance on when a urine pregnancy test is likely to detect pregnancy, based on timing and test sensitivity.

Estimate, not a diagnosis. This tool gives an educational estimate based on the numbers you enter. It cannot account for your individual health history — consult a healthcare professional for anything clinical.

10days
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5
10
15
20
25mIU/mL
10
15
20
25
30
35
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45
50

Check your test's packaging — lower numbers mean more sensitive.

How this helps

Test sensitivity indicates the minimum hCG level a test can detect. Earlier after ovulation, hCG may still be below that level even if conception occurred — this tool gives heuristic guidance, not a definitive probability.

Limitations

Brand variation and individual hCG rise rates mean repeat testing is often advised. Contact a clinician for concerns or quantitative hCG monitoring.