EDD stands for Estimated Due Date. It marks your baby's expected arrival date. Knowing your EDD is crucial for prenatal care planning.
An EDD calculator helps predict your delivery date. Doctors use it to schedule tests and monitor fetal development. Additionally, it assists in preparing for your newborn.
This tool calculates based on your last menstrual period. Consequently, it provides a reliable timeframe for your pregnancy journey. Ultimately, it empowers expectant parents with valuable information.
Using an EDD calculator is simple and efficient. First, input your cycle details. Then, receive an immediate due date estimation.
Our EDD calculator outperforms others with its precision. Unlike basic tools, it accounts for cycle length variations.
Furthermore, it provides conception and trimester dates. This comprehensive approach supports better pregnancy planning.
Remember, only 5% of babies arrive exactly on their due date. Most births occur within two weeks before or after the EDD.
The standard formula adds 280 days (40 weeks) to the first day of your last menstrual period. This method, known as Nägele's rule, is widely used worldwide.
For conception dates, we add 266 days (38 weeks) since pregnancy is calculated from LMP, not conception.
The EDD calculator uses established medical principles. First, it identifies your last menstrual period start date. Then, it adds 280 days to determine your due date.
Alternatively, if using conception date, it adds 266 days. The tool adjusts for your specific cycle length. This personalization enhances accuracy significantly.
Finally, it calculates key pregnancy milestones. These include trimesters and important screening dates. Therefore, you receive comprehensive pregnancy information.
| Stage | Timing | Key Developments | Medical Checks |
|---|---|---|---|
| First Trimester | Weeks 1-13 | Organ formation, heartbeat begins | Pregnancy confirmation, initial screening |
| Second Trimester | Weeks 14-26 | Movement felt, gender visible | Anatomy scan, genetic testing |
| Third Trimester | Weeks 27-40 | Rapid growth, position change | Growth scans, birth planning |
| Full Term | Week 39-40 | Lungs mature, ready for birth | Final checks, delivery preparation |
An EDD calculator estimates your baby's due date. It uses your last period or conception date. This helps plan prenatal care and prepare for delivery.
EDD calculators are quite accurate when using correct information. However, only 5% of babies arrive exactly on their due date. Most births occur within a two-week window.
Yes, but accuracy may decrease. Provide your average cycle length for best results. Early ultrasound dating is more reliable for irregular cycles.
LMP is more reliably remembered than conception date. Pregnancy officially begins on the first day of your last period. This standardization helps healthcare providers.
Sometimes. Early ultrasounds may adjust your initial EDD. Significant differences between LMP and ultrasound dates often result in updated estimates.