Editorial Policy & Review Standards
Pregnancy Calculator adheres to rigorous standards of accuracy, transparency, and clinical reliability. Here is how we create, verify, and maintain our educational content and calculator tools.
1. Source Selection Standards
We exclusively rely on recognized obstetric institutions (e.g., ACOG, SMFM), government public health agencies (CDC, NIH), and peer-reviewed medical literature. We do not use commercial blogs, secondary opinion pieces, or unverified claims.
2. Fact-Checking & Mathematical Verification
Every calculation algorithm is unit-tested against real-world clinical test vectors (including leap years, varying cycle lengths, and ultrasound reconciliation standards) before publication.
3. Corrections Policy
If a factual error or outdated clinical guidance is identified, our team investigates immediately and publishes corrections transparently, noting the modification date on the affected page.