1. What is Beta HCG?

Beta hCG (human chorionic gonadotropin) is a hormone produced during pregnancy. The levels of hCG can be measured in blood or urine and are used to estimate gestational age and monitor pregnancy progression.

2. How Does the Calculator Work?

The calculator uses the Beta hCG to weeks formula:

Where:

• \( hCG \) — Beta hCG level in mIU/mL
• \( \log_{10} \) — Base-10 logarithm
• 5 — Baseline hCG value
• 0.4 — Growth rate constant

Explanation: This formula estimates gestational age based on the logarithmic relationship between hCG levels and pregnancy duration.

3. Importance of hCG Measurement

Details: hCG measurement is crucial for confirming pregnancy, estimating gestational age, monitoring pregnancy progression, and detecting potential complications such as ectopic pregnancy or miscarriage.

4. Using the Calculator

Tips: Enter the Beta hCG value in mIU/mL. The value must be greater than 0. The calculator will provide an estimate of gestational age in weeks.

5. Frequently Asked Questions (FAQ)

Q1: How accurate is this calculation?
A: This provides an estimate based on typical hCG patterns. Actual gestational age should be confirmed by ultrasound for precise dating.

Q2: What are normal hCG levels during pregnancy?
A: hCG levels vary widely but typically double every 48-72 hours in early pregnancy, peaking around 8-11 weeks.

Q3: When should hCG be measured?
A: hCG can be detected about 11 days after conception and is most useful for dating in the first trimester.

Q4: Are there limitations to this calculation?
A: Yes, hCG levels vary between individuals and pregnancies. Multiple pregnancies, molar pregnancies, or complications can affect hCG levels.

Q5: Should this replace ultrasound dating?
A: No, ultrasound remains the gold standard for accurate pregnancy dating. hCG calculation provides an initial estimate.