1. What is Pregnancy Week Calculation?

The pregnancy week calculation estimates how far along a pregnancy is based on the estimated due date (EDD) and current date. It helps track fetal development and schedule prenatal care.

2. How Does the Calculator Work?

The calculator uses the following formula:

Where:

• EDD — Estimated Due Date (date of 40 weeks gestation)
• Current Date — Today's date or any date you want to check
• 7 — Days in a week
• 40 — Standard length of pregnancy in weeks

Explanation: The calculation determines how many weeks remain until the due date and subtracts this from 40 weeks to get the current pregnancy week.

3. Importance of Pregnancy Week Tracking

Details: Accurate pregnancy dating is essential for proper prenatal care, timing of tests, monitoring fetal growth, and determining if delivery is premature or post-term.

4. Using the Calculator

Tips: Enter the estimated due date (typically determined by first-trimester ultrasound) and the current date. The calculator will show the current pregnancy week.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: It's accurate if the EDD is correct. First-trimester ultrasound dating is most accurate (±5-7 days).

Q2: What if my cycle isn't 28 days?
A: This calculator assumes standard pregnancy length. If your EDD was adjusted for irregular cycles, use that date.

Q3: Why does it show more than 40 weeks?
A: Pregnancy normally lasts 40 weeks from LMP, but many women deliver between 37-42 weeks.

Q4: What's considered full term?
A: 37-42 weeks is considered term. Before 37 is preterm, after 42 is post-term.

Q5: Can I use my conception date instead?
A: Yes, but add 2 weeks to conception date for gestational age (pregnancy dating starts from LMP, not conception).