Pregnancy Due Date and Estimated Delivery Date Calculator

Pregnancy Due Date and Estimated Delivery Date Calculator Explanation and Clinical Context This calculator estimates the expected delivery time using the Last Menstrual Period date as reference. Gestation is assumed as forty weeks or two hundred eighty days from LMP which is widely used in clinical obstetrics. This approach supports counselling and follow up planning for fetal growth monitoring and maternal evaluation.

Normal pregnancy duration may vary in clinical reality influenced by individual variation and obstetric conditions. This tool simplifies trimester estimation which assists in milestone scheduling including first trimester screening second trimester anomaly scan and third trimester preparation. Use alongside clinical judgement and antenatal assessment.

Reference American College of Obstetricians and Gynecologists. Methods for estimating due dates. Obstet Gynecol.

2017. Naegele F. Lehrbuch der Geburtshilfe.

1830.