POG Calculator – Your Ultimate Pregnancy Due Date Companion Discover the POG Calculator , a must-have tool for expecting mothers to track their pregnancy journey with ease. Whether you’re wondering about your due date or curious about your baby’s growth, the POG Calculator simplifies it all! What Is the POG Calculator Used For? The POG Calculator is designed to help you: Estimate your due date with precision using your Last Menstrual Period (LMP) or ultrasound data. Track your pregnancy ... Gestational Calculator Enter either date of last menstrual period or ultrasound information. If both data sets are entered, the calculator will only use ultrasound data. ... Calculation is based on an average 280 day gestation from the first day of the last menstrual period in a woman with a 28 day cycle. This page provides a calculator to estimate the expected date of delivery for pregnant patients, along with patient education resources. The most versatile pregnancy calculator . Instantly calculate gestational age or due date from any other reference point in the pregnancy. This app calculates exactly 280 days (40 weeks) from LMP to EDD, and accordingly for any date in between.