Pregnancy Due Date Calculator
Planning for your baby's arrival starts with understanding your estimated due date. Use our free pregnancy due date calculator to estimate your due date based on the first day of your last menstrual period (LMP). This tool provides an estimate and should not replace guidance from your healthcare provider.
Want to Learn More About Due Dates?
Your estimated due date is an important milestone but it's only one part of your pregnancy journey. Understanding how due dates are calculated, why they sometimes change, and what to expect if you go past 40 weeks can help you feel more informed and confident.
Read our guide:
Understanding Your Due Date: How It's Calculated, Why It Can Change, and What Every Parent Should Know
Need Personalized Birth Support?
Whether you're planning an unmedicated birth, an epidural, a VBAC, twins, or a planned cesarean birth, our Sacramento-area birth doulas provide compassionate, evidence-based support throughout pregnancy, labor, birth, and the early postpartum period.
From answering questions during pregnancy to providing continuous labor support and helping you navigate your options, we're here to help you feel informed, confident, and supported every step of the way.
Disclaimer
This Pregnancy Due Date Calculator is provided for educational and informational purposes only. It estimates your due date based on the first day of your last menstrual period (LMP) using a standard 280-day (40-week) pregnancy. Every pregnancy is unique, and your healthcare provider may adjust your estimated due date based on an early ultrasound, your menstrual cycle history, or other clinical factors.
This calculator is not intended to diagnose, treat, or replace medical advice. Always consult your obstetrician, midwife, or other qualified healthcare provider with questions about your pregnancy or prenatal care.
Rebecca Rose Doula Services provides non-medical birth and postpartum support. Our doulas do not provide medical care, diagnose medical conditions, or make clinical decisions.