Pregnancy Test at 3 Weeks Calculator

Free calculate pregnancy test accuracy at 3 weeks. This is an educational tool only - always consult a healthcare provider.

Test Information

Weeks since last menstrual period

Results

Enter test information to calculate accuracy

About Early Testing

  • • hCG levels rise rapidly in early pregnancy
  • • Blood tests detect pregnancy earlier
  • • Urine tests: Best after missed period
  • • False negatives more common early
  • • Repeat test if period is missed