Methods for estimating the due date. Committee Opinion No. 700. American College of Obstetricians and Gynecologists. Obstet Gynecol 2017;129:e150–4.

Whitworth M, Bricker L, Mullan C. Ultrasound for fetal assessment in early pregnancy. Cochrane Database Syst Rev. 2015;(7):CD007058.

Chervenak FA, Skupski DW, Romero R, et al: How accurate is fetal biometry in the assessment of fetal age? Am J Obstet Gynecol 1998; 178:678.

Dr. Frank A. Chervenak

Pregnancy Due Dates Calculator

<p>Calculates pregnancy dates from last period, gestational age, or date of conception.</p>

<p>From LMP, EGA, or date of conception.</p>

The Pregnancy Due Dates Calculator Calculates pregnancy dates, forward from last period or backward from due date.

EB Medicine is the premier provider of evidence-based clinical content and CME resources for emergency medicine practitioners.

Listen to the VACO co-creators break down how to use VACO\, what it does\, and what it doesn’t.