Pregnancy Due Date Calculator
Calculate your estimated due date, track your baby's growth, and discover important milestones along your pregnancy journey.
Calculation Details
Estimated Due Date
Baby Size
Key Milestones
Understanding Your Pregnancy Due Date
Knowing your estimated due date (EDD) is one of the most exciting parts of early pregnancy. It helps you track your baby's development, plan for their arrival, and schedule important prenatal appointments. Our Pregnancy Due Date Calculator uses standard medical formulas to provide you with an accurate estimate based on your specific situation.
How We Calculate Your Due Date
The most common method for calculating a due date is Naegele's rule, which adds 280 days (40 weeks) to the first day of your last menstrual period (LMP). This assumes a standard 28-day cycle. If your cycle is longer or shorter, our calculator adjusts the date accordingly.
If you know your exact date of conception or underwent IVF, we use specific formulas tailored to those events, providing a highly accurate estimate of your due date.
Pregnancy Milestones
- First Trimester (Weeks 1-12): Crucial development of organs and systems.
- Second Trimester (Weeks 13-26): Often called the "honeymoon phase," when morning sickness typically fades and you may feel the baby move.
- Third Trimester (Weeks 27-40): Rapid growth and final preparations for birth.
- Full Term (37+ Weeks): Your baby is considered fully developed and ready for birth.