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LH Surge
Positive Ovulation Test
The test line (T) is as dark as, or darker than, the control line (C). This indicates your LH surge, ovulation is likely within the next 24–48 hours.
Track Ovulation with easy@Home Ovulation Test
Ensuring a confident TTC journey for you.
How to Use easy@Home Ovulation Test Strips
easy@Home Ovulation Test Strips detect the luteinizing hormone (LH) surge in your urine, the hormonal signal that ovulation is likely approaching within the next 24 to 48 hours. This guide walks you through when to test, how to test, and how to read your results, so you can identify your fertile window with clarity.
Follow these simple steps to track your luteinizing hormone (LH) surge and confidently identify your peak fertile window.
How to test, step by step
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1
Collect urine
Collect the urine sample in a clean, dry container or the Premom Pee Cup.
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2
Dip the strip for 5-10 seconds
Dip the strip into the urine up to the MAX line for 5–10 seconds. Do not dip past the MAX line.
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3
Lay the strip flat
Remove the strip and place it flat on a clean, dry, non-absorbent surface.
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4
Read Result Within 5 Minutes
Do not read results after 5 minutes, as they may no longer be reliable.
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5
Read or Scan with the Premom app
Read your result or scan it using the Premom app.
Tips for best result
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Avoid first morning urine
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Reduce liquid intake 2-3h before testing
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Test at the same time daily
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Scan in the Premom app
Just took an easy@Home ovulation test?
Scan your test strip and get instant cycle prediction on your phone. Keep your full history in one clean, easy-to-read calendar.
How to read your results
Every test shows a control line (C) and a test line (T). The control line confirms the test worked.
No Surge Yet
Negative Ovulation Test
The test line (T) is lighter than the control line (C), or not visible. Keep testing daily.
Approaching result: test line darker but still lighter than control line, value 0.8
Approaching
LH Levels Rising
The test line is getting darker day by day but hasn't yet matched the control line, your surge may be near. Continue testing, ideally twice a day.
Invalid result: no control line, value not available
Invalid
Retest Required
No control line appears. Retest with a new strip.
Tip: LH lines are easy to misjudge by eye. Scanning each strip into the Premom app gives you a clearer read of your line progression over the cycle, so you can see your peak rather than guess it.
How Premom reads your ovulation test
Premom reads it differently—with more clarity.
Premom scans your easy@Home strip and turns the test line into two things: a T/C ratio and a Low, High, or Peak label.
The visual read gives you positive or negative. A T/C ratio shows you how much your LH actually moved since yesterday.
What is a T/C ratio?
The T/C ratio compares the color intensity of the test line (T) to the control line (C). Test across your cycle and those numbers build a curve, so you're watching a trend instead of judging one strip at a time.
What Do Low, High and Peak Mean?
| Label | What it means | What to do |
|---|---|---|
| Low | Low chance of pregnancy | Keep testing |
| High | High chance of pregnancy | Keep testing to identify your LH peak |
| Peak | High chance of pregnancy | Time sex during your peak days |
Why Premom Is Calibrated to easy@Home Strips
Premom’s test reader was built by reading easy@Home tests. The algorithm is calibrated to those specific line characteristics, which is why scanning an easy@Home strip gives you a more consistent read cycle after cycle.
Together, the T/C ratio and the Low, High, or Peak label help you catch your LH surge without guessing whether today’s line looked darker than yesterday’s.
Just took an easy@Home ovulation test?
Scan your test strip and get instant cycle prediction on your phone. Keep your full history in one clean, easy-to-read calendar.
When to begin testing
Your testing start day depends on your cycle length. A common approach is to subtract 17 from your average cycle length and begin testing on that day, for a 28-day cycle, that's around day 11.
- Test at the same time each day; late morning to early evening (10 AM–8 PM) works well
- Avoid your first morning urine, as LH is more detectable later in the day
- Limit fluids for about 2 hours before testing so your urine isn't diluted
- Testing twice a day during your expected fertile window can help you catch the surge
Example: If your cycle is 26 days, start testing on day 10.
Just took an easy@Home ovulation test?
Scan your test strip and get instant cycle prediction on your phone. Keep your full history in one clean, easy-to-read calendar.
After your surge
Once you detect your LH surge, your most fertile days are typically the day of the surge and the following 1–2 days. This is the window many couples focus on when trying to conceive.
Note: Ovulation test strips indicate the LH surge; they do not confirm that ovulation has occurred. For a fuller picture, some users also track basal body temperature (BBT) in the Premom app. For any fertility concerns, consult your doctor.
Watch: How to use easy@Home test strips
A quick tutorial to help you test with confidence every time.
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Shop Official easy@Home Products
The full easy@Home range is available through the brand’s storefronts.
Frequently asked questions
Can an ovulation test be used as a pregnancy test?
No. Ovulation tests detect LH; pregnancy tests detect hCG. Use an easy@Home Pregnancy Test to check for pregnancy.
What does a faint test line mean?
A test line lighter than the control line means your LH surge hasn’t peaked yet. Keep testing daily until the test line is as dark as or darker than the control line.
Why avoid first morning urine?
LH is typically more detectable in urine later in the day, so late morning to early evening testing is recommended.
Can I use these strips with irregular cycles?
Yes. With irregular cycles you may need to test over more days to catch your surge. Logging in the Premom app helps you spot your pattern over time.
Ready to move ahead in your TTC journey?
Track your fertile days with confidence with easy@Home ovulation test strips and the Premom app.
Disclaimer:
- Over 1.8 million users logged pregnancy or a positive pregnancy test while using the Premom App.
- Based on historic Amazon US Sales Rank data for the "Ovulation Tests" category from 2017–2024 and aggregate customer reviews on the primary easy@Home ovulation test strip listing.
