Medical Advisory Board & StandardsE-E-A-T Verified

About Pregnancy Calculator: Clinical Oversight, Medical Board & Principles

Pregnancy Calculator was established to provide expectant parents, couples, healthcare professionals, and fertility planners with instant, transparent, and clinically validated gestational calculations without subscription paywalls, invasive app tracking, or algorithmic data harvesting.

Our Core Mission

Every pregnancy journey begins with crucial questions: When was my baby conceived? What is my exact gestational age today? What fetal organs are forming this week? When is my estimated due window? We demystify obstetrical dating arithmetic, translating authoritative clinical formulas into fast, accessible, and privacy-respecting digital tools.

Clinical Leadership & E-E-A-T

Our Medical Advisory & Editorial Board

Health-related guidance requires the highest degree of medical accuracy and human authority. All educational guides, calculation formulas, and clinical benchmarks on Pregnancy Calculator are created and reviewed by licensed medical professionals and health communicators.

SJ

Dr. Sarah Jenkins, MD, FACOG

Medical Director & Lead Clinical Reviewer

Obstetrics & Gynecology, Prenatal Ultrasound Biometrics

Dr. Jenkins is a board-certified obstetrician-gynecologist with over 14 years of clinical hospital and outpatient practice. She oversees our clinical calculation methodology, verifying that all gestational formulas and developmental milestone algorithms adhere strictly to current ACOG, SMFM, and CDC practice bulletins.

Education & Training

MD, Columbia University Vagelos College of Physicians and Surgeons; Residency in OB/GYN at NewYork-Presbyterian Hospital.

Professional Affiliations
  • Fellow, American College of Obstetricians and Gynecologists (FACOG)
  • Member, Society for Maternal-Fetal Medicine (SMFM)
  • Clinical Instructor in Obstetrics & Prenatal Care
ER

Elena Rostova, MSN, CNM, WHNP-BC

Clinical Midwifery & Women’s Health Consultant

Physiological Birth, Ovulation Science, Perinatal Health

Elena has attended more than 1,200 births and spent over a decade counseling expectant parents through fertility tracking, menstrual cycle variations, natural physiological labor, and postpartum transitions. She reviews all guide content related to conception windows, cycle irregularity, and trimester symptoms.

Education & Training

MSN in Nurse-Midwifery & Women’s Health, University of Pennsylvania School of Nursing.

Professional Affiliations
  • American College of Nurse-Midwives (ACNM)
  • Association of Women’s Health, Obstetric and Neonatal Nurses (AWHONN)
RA

Rachel Adams, MPH

Senior Medical Writer & Perinatal Epidemiologist

Perinatal Epidemiology, Health Communication, Clinical Evidence Synthesis

Rachel holds an MPH from the Johns Hopkins Bloomberg School of Public Health. With 9+ years in evidence-based medical journalism, she specializes in demystifying complex obstetric statistics, delivering empowering, compassionate, and medically vetted guidance for expectant families.

Education & Training

MPH in Maternal and Child Health, Johns Hopkins University.

Professional Affiliations
  • American Public Health Association (APHA)
  • Association of Health Care Journalists (AHCJ)
DC

David Chen, MS

Biomedical Informatics & Algorithmic Architecture Lead

Obstetric Algorithms, Statistical Modeling, Client-Side Privacy

David directs the algorithmic implementation of Naegele’s Rule, Parikh’s cycle corrections, and ultrasound crown-rump length (CRL) curves. He guarantees our mathematical engines execute with deterministic precision strictly within local browser memory without storing or transmitting personal health identifiers.

Education & Training

MS in Biomedical Informatics, Stanford University.

Professional Affiliations
  • American Medical Informatics Association (AMIA)
  • Institute of Electrical and Electronics Engineers (IEEE) Engineering in Medicine and Biology

Editorial Independence & Conflict of Interest Policy

Our clinicians and writers maintain strict independence. We do not accept pharmaceutical sponsorships, paid endorsements for maternity supplements, or commercial compensation for favorable mentions. All guidance is grounded exclusively in peer-reviewed clinical research published by ACOG, SMFM, CDC, and the NIH.

The Three Pillars of Our Platform

1. Clinical Precision

Our algorithms are based on peer-reviewed obstetrical protocols published by the American College of Obstetricians and Gynecologists (ACOG) and the Society for Maternal-Fetal Medicine (SMFM). We accurately reconcile Naegele's Rule with custom menstrual cycle lengths and ultrasound crown-rump length (CRL) dating standards.

2. Privacy By Architecture

Reproductive cycle dates are deeply personal. All calculations run strictly in your client browser memory using client-side JavaScript. We do not transmit, log, store, or profile your personal period dates, conception timelines, or calculation results on our backend servers.

3. Transparent Science

We believe parents deserve to understand the formulas behind the numbers. Every tool on our site provides the underlying mathematical formula, explains standard deviations, and clarifies that due dates represent a 37-to-42 week biological delivery window rather than an unyielding deadline.

Medical Disclaimer & Professional Care

Pregnancy Calculator is designed strictly for informational and educational purposes. It does not provide medical diagnoses, treatment plans, or individualized clinical prognoses. Biological timelines can vary significantly based on fetal growth rates, placental health, and maternal conditions. Always consult your obstetrician, certified nurse-midwife, or maternal health specialist for clinical pregnancy management.

Editorial Oversight & Feedback

Our educational guides and algorithm documentation undergo routine peer review against updated guidelines from ACOG and international perinatology societies. If you have clinical suggestions, formula corrections, or accessibility feedback, our editorial desk reviews all inquiries thoroughly.

Read Editorial PolicyContact Our Team

Explore Our Standalone Calculators

Pregnancy CalculatorDue Date CalculatorConception Calculator