Early Test When = LMP + 14 days
| From: | To: |
Early pregnancy testing helps determine the optimal time to take a pregnancy test for accurate results. Testing too early can lead to false negatives, while testing at the right time increases accuracy.
The calculator uses the formula:
Where:
Explanation: This calculation estimates when pregnancy hormone (hCG) levels may be detectable by home pregnancy tests.
Details: Proper timing ensures accurate test results. Testing before the calculated date may result in false negatives due to low hCG levels.
Tips: Enter the first day of your last menstrual period. Use the calculated date as the earliest recommended time to take a pregnancy test for reliable results.
Q1: Why wait 14 days after LMP?
A: This allows time for ovulation, fertilization, implantation, and hCG production to reach detectable levels.
Q2: Can I test earlier than the calculated date?
A: While possible, testing earlier increases the risk of false negatives. For best accuracy, wait until the calculated date or your expected period date.
Q3: What if my cycle is irregular?
A: This calculator assumes a 28-day cycle. If your cycle varies, consider testing based on your typical cycle length or consult a healthcare provider.
Q4: What time of day is best for testing?
A: First morning urine typically contains the highest concentration of hCG, making it ideal for early testing.
Q5: How accurate are home pregnancy tests?
A: When used correctly at the right time, most home pregnancy tests are 99% accurate. Always follow manufacturer instructions.