Home
Back
Pregnancy Calculation Formula:
| From: | To: |
The Pregnancy Calculator Based On Date Of Conception estimates the due date and tracks pregnancy progress using the known conception date. It calculates the estimated due date by adding 266 days (38 weeks) to the conception date, which represents the typical gestation period from conception.
The calculator uses the pregnancy calculation formula:
Where:
Explanation: This calculation provides the most accurate due date when the exact conception date is known, as it directly calculates from the actual beginning of pregnancy.
Details: Accurate pregnancy dating is crucial for proper prenatal care, monitoring fetal development, scheduling important tests, and preparing for delivery. It helps healthcare providers track milestones and identify potential complications.
Tips: Enter the exact known conception date. The calculator will provide the estimated due date, current pregnancy progress in weeks and days, and days remaining until the due date.
Q1: Why 266 days instead of 280 days?
A: 280 days is calculated from the last menstrual period (LMP), while 266 days is from conception. Pregnancy is typically 38 weeks from conception or 40 weeks from LMP.
Q2: How accurate is conception date calculation?
A: When the exact conception date is known, this method provides the most accurate due date estimate available.
Q3: What if I don't know my exact conception date?
A: If the conception date is unknown, use a calculator based on last menstrual period or consult with your healthcare provider for ultrasound dating.
Q4: Can pregnancy length vary?
A: Yes, normal pregnancy can range from 37-42 weeks. First-time mothers often deliver closer to 41 weeks.
Q5: Should I rely solely on this calculator?
A: This calculator provides an estimate. Always consult with healthcare providers for medical advice and confirm dating through clinical assessment.