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Pregnancy Due Date Calculation:
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Baby Calculator Net is a tool that calculates the estimated due date (EDD) of pregnancy based on the last menstrual period (LMP) using the standard 280-day pregnancy duration.
The calculator uses the standard pregnancy calculation formula:
Where:
Explanation: This calculation is based on Naegele's rule, which assumes a 28-day menstrual cycle and ovulation occurring on day 14.
Details: Accurate due date calculation is essential for proper prenatal care, monitoring fetal development, planning for delivery, and identifying potential pregnancy complications.
Tips: Enter the first day of your last menstrual period in the date field. The calculator will provide your estimated due date, current gestational age, and days remaining until delivery.
Q1: How accurate is this due date calculation?
A: This method provides a good estimate, but only about 5% of babies are born exactly on their due date. Most births occur within 2 weeks before or after the calculated date.
Q2: What if my menstrual cycle is longer or shorter than 28 days?
A: For cycles longer than 28 days, add the extra days to the due date. For shorter cycles, subtract the difference. Consult your healthcare provider for personalized calculation.
Q3: Can the due date change during pregnancy?
A: Yes, healthcare providers may adjust the due date based on early ultrasound measurements, which are most accurate in the first trimester.
Q4: What is considered full-term pregnancy?
A: A pregnancy is considered full-term between 37 weeks and 41 weeks 6 days. Babies born before 37 weeks are preterm, and after 42 weeks are post-term.
Q5: Should I rely solely on this calculator for medical decisions?
A: No, this tool is for informational purposes only. Always consult with your healthcare provider for medical advice and official due date confirmation.