Pregnancy Due Date Calculator

Calculate your estimated due date (EDD) using five methods: last menstrual period, conception date, ultrasound scan, IVF transfer date, or reverse calculation from a known due date. See key milestones, baby size comparisons, and your safe delivery window.

Calculate from

Twin or multiple pregnancy

Adjusts due date to 37-38 weeks (twins typically arrive earlier)

First day of your last menstrual period

Disclaimer: This calculator is for informational purposes only and should not replace professional medical advice. Patient.info does not store any of your personal or medical data in association with your answers. All answers are completely anonymous. Always consult a healthcare provider for personalised health guidance.