🧪
Pregnancy Test Calculator
Find out the earliest and best dates to take a pregnancy test for the most accurate results.
Enter Your Details
Typical cycle is 21-35 days. Default: 28 days.
When to Take a Test
Timing is crucial for accurate pregnancy test results:
- Blood tests can detect pregnancy as early as 12 days past ovulation.
- Home urine tests work best 14+ days past ovulation.
- Testing after a missed period gives the most reliable results.
Types of Pregnancy Tests
Blood Test (Beta hCG):
Done at a lab. Can detect very low hCG levels. Results in 24-48 hours. Most sensitive option available.
Urine Test (Home Kit):
Available at pharmacies. Quick results in 3-5 minutes. Best used with first morning urine for highest accuracy.
Tips for Accurate Results
- Use first morning urine for home tests, as it has the highest hCG concentration.
- Avoid drinking excess fluids before testing, as diluted urine may cause a false negative.
- If the result is negative but your period is late, retest after 2-3 days.
Understanding hCG Levels
hCG (human chorionic gonadotropin) is the hormone pregnancy tests detect:
- hCG begins rising after implantation, typically 6-12 days past ovulation.
- In early pregnancy, hCG levels double roughly every 48-72 hours.
- Home tests typically detect hCG levels of 25 mIU/mL or higher.
Medical Disclaimer
- This calculator provides an estimate only and is not a substitute for professional medical advice.
- A negative result does not rule out pregnancy - consult your doctor if your period is delayed.
- For confirmed results, visit your gynaecologist for a blood test.
100% private. This calculator runs entirely in your browser. Your dates are never sent to a server or stored.
Related Tools
🌱
Implantation Calculator
Find out when implantation is most likely to occur.
Calculate Implantation