Discover your baby's estimated delivery date. Calculate your due date to understand pregnancy milestones based on your last menstrual period and cycle length for optimal pregnancy planning.
Enter your last period date and click Calculate to see your due date
Due date calculations are statistical estimates that work well for population assessments but may not perfectly match your individual pregnancy timeline. For the most accurate assessment, consider professional ultrasound dating and regular prenatal care.
Your Due Date represents the estimated completion of a full-term pregnancy at 40 weeks gestation. Think of it as the target endpoint for fetal development - when your baby's organs, brain, and body systems reach maturity for safe delivery.
Due dates are typically calculated from the first day of your last menstrual period (LMP), adding 280 days or 40 weeks. This method accounts for the two weeks before conception occurs, making it easier to track pregnancy milestones.
Understanding your due date is crucial for prenatal care scheduling, birth planning, and monitoring fetal development. It provides healthcare providers with a timeline to assess whether your pregnancy is progressing normally.
Most common method used by healthcare providers. Based on a standard 28-day cycle with ovulation on day 14.
Uses fetal measurements to estimate gestational age. Most accurate when performed early in pregnancy.
Used when exact conception date is known (IVF, fertility treatments). Accounts for actual fertilization rather than LMP.
Schedule regular checkups throughout pregnancy to monitor fetal development and maternal health.
Prepare for delivery by organizing maternity leave, hospital arrangements, and birth plan preferences.
Organize nursery setup, baby supplies, and newborn care essentials before your due date arrives.
Important: Due date calculations provide estimates. Individual pregnancies may vary based on cycle length, conception timing, and fetal development. Always consult healthcare professionals for personalized prenatal care.
Women with longer or shorter cycles than the standard 28 days may ovulate earlier or later, affecting actual conception timing and due date accuracy.
First-time mothers and older mothers may have longer pregnancies, while experienced mothers might deliver earlier.
Pattern of previous pregnancy lengths can influence current pregnancy duration and delivery timing.
Family history of pregnancy lengths can influence your due date, as genetic factors affect gestation duration patterns.
Individual fetal growth rates and development patterns can influence when natural labor begins relative to estimated due date.
Maternal health conditions, pregnancy complications, and medical interventions can affect pregnancy duration and delivery timing.