FAQ Ovulation Test Kits Using Ovulation Test Strips
Below is a selection of the most frequently asked questions about ovulation tests.
What is an ovulation predictor test kit & how does it detect the most fertile time?
You can see our full range of ovulation prediction test kits & ovulation tests available to buy online.
How do ovulation kits work?
When do I start testing with urine LH ovulation test kits?
When to start testing
Determine the length of your menstrual cycle. Your menstrual cycle length is the number of days from the first day of your period (menstrual bleeding) to the last day before your next period starts. Think back over the last few months to decide what your usual cycle length has been.
Circle your usual cycle length on the WHEN TO START CHART below. Select the number directly underneath. Starting the first day of your last period, count ahead of the selected number of days on your calendar. This is the day you should begin testing.When to start chart
Circle your usual cycle length.Cycle 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40
Start 06 06 07 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23Example, if your cycle length is 26 days start testing on day 9. (Where day one is the first day of your last period).Note: If you are unsure about your cycle length, or your cycles are irregular, you may want to use your shortest cycle length when reading the chart. If you do this, you may need to test for more than 5 days.
You can buy LH home ovulation test kits through this website.
When’s the best time of day to take an ovulation test?
Why do I need to restrict my fluid before I collect my urine sample for my LH test?
How do you use ovulation test sticks?
Ovulation test sticks or strips are very simple and easy to use. They screen urine for a hormone called LH or Luteinising hormone, that increases rapidly just before ovulation, and is the hormone that triggers the release of the egg from the ovary. This hormone can be detected in your urine. The LH tests work by identifying when this hormone is above a certain level that is required to stimulate ovulation. This high level is known as the LH surge.
To use an ovulation test strip you simply collect your urine sample at the correct time of day, usually early to mid-afternoon for most women and then you dip the urine test strip into the urine sample for a few seconds and then lay it flat. You will see the urine running along the strip, and you should see a Control or C line appear. This means that the test has absorbed enough urine. You then wait the required time as specified in the instructions for the test that you are using, usually a few minutes, and then you look for a Test or T line to develop. To be positive the T line must be the same as, or darker than the C line.
How long do the results take to appear on my ovulation test?
You can usually read the results on most ovulation test kits within about 10 minutes. Read the instructions for the test kit that you have purchased, as they may vary a little from brand to brand. A positive result will not disappear, but some negative results may later turn positive if left for longer than the specified time in the instructions. If this happens this is not a positive result. It is best to discard the ovulation test kit once you have read the result so you will not be tempted to look at it again.
What does no LH surge mean?
• LH surge may be too mild to be detected by the LH tests that you are using. It may be worth trying a lower sensitivity LH test.
• Your urine sample may have been too diluted. Make sure you restrict your fluid intake for about 2 hours before you take the test
• You may have tested at the wrong time of day and missed the LH surge. The ideal time to test is early to mid-afternoon.
• The test strip may not have absorbed enough urine. Make sure that the control line is visible. This shows that sufficient urine has been absorbed, for the test to run. if the control line is not showing dip the strip into the urine sample again.
• The LH test that you are using may be faulty. Make sure that you buy from a reputable supplier, and that the tests are in date and have been stored correctly.
• You may be testing at the wrong time of your cycle. For women who have irregular periods, knowing when to test can be very difficult.
• You may not have used the test correctly. Make sure that you read the instructions before starting the test and use a timer.
• You may not be going to ovulate this month. This may just be a one-off, but if it happens repeatedly you should see your doctor, as it may mean that you are not ovulating and need further investigations.
• You may already be pregnant. There is always a small possibility that you may already be pregnant. If your last period was different to usual, or very light it may be worth doing a pregnancy test.
Why do I ovulate late in my cycle?
• general health issues
• over exercising
• weight too high or too low
• genetic problem
• ovarian problemIf the late ovulation is a one-off, then is probably caused by stress either physical or phycological. However, if ovulation is late often this can make it more difficult to conceive and may need further investigations. Talk to your doctor if you are experiencing late ovulation or erratic cycles regularly.
What to do if not ovulating?
How accurate are ovulation tests?
What does a prolonged LH surge mean?
• Approaching menopause.
How long after having a coil IUCD removed will I detect an LH surge?
The control line on my LH test is faint. Does this matter?
What are professional ovulation tests?
Contact us for Professional & NHS ovulation & pregnancy tests.