BFP Ovulation Test Strips
Ovulation Test Strips comparison chart.
Ovulation Test Strips Cycle Chart
BFP Ovulation Test Strips
Ovulation Test Strips comparison chart.
Ovulation Test Strips Cycle Chart

BFP™ Ovulation Tests

$0.80
173 Reviews

Easy-to-use ovulation test strips detect the LH surge 24-48 hours before ovulation

Free Shipping on Orders above $35 (US)

Key benefits

BFP Ovulation Tests are eco-friendly and affordable ovulation test strips to help pinpoint ovulation.

  • Get positive results in minutes by detecting the LH surge 24-48 hours before ovulation
  • Tests are made in North America and have no plastic cartridge, for an eco-friendly option
  • Urine-based ovulation tests are 99% accurate for results you can count on

Product Description

Pinpoint Your Ovulation Date With BFP Ovulation Tests
Ovulation tests work by detecting the surge in luteinizing hormone (LH) that occurs just before you ovulate, typically within 24-48 hours of your LH surge. Unlike midstream ovulation tests, BFP Ovulation Tests are dipped into collected urine. Manufactured in North America, BFP (“big fat positive”) Ovulation Tests are easy to use, highly accurate, and they cost just a fraction of what drugstore brands charge.

Easy to use: After dipping the test in urine, lay it on a flat surface. Within minutes, your test result will appear. A positive result indicates that peak fertility is at hand and that this is your optimal time for achieving pregnancy.

Accuracy: Interpreting the results of your ovulation test is easy: Simply compare the intensity (boldness) of the test line to that of the control line. If the test line is as bold or bolder than the control line, that indicates a positive result, and ovulation will occur within 24-48 hours. If the test line is fainter than the control line, or if the test line is not visible at all, that indicates a negative result.

Affordability: Frequent testing is a hallmark of the TTC experience, and with the BFP Ovulation Test, you can test as often as you like without breaking the bank. 

Complete test instructions ship with every order.

Packaging and label may vary.

Frequently Asked Questions

How many mIU/L?

BFP Ovulation Tests test at the 30 miu level.
When should I start testing?

This is different for everyone and is dependent on your cycle length. Please use the graphic in the instructions to determine the cycle day you should begin testing.
How do I know the test is working?

You can confirm that the test is working accurately if you receive a valid control line. A test without a control line is an invalid test and should be discarded.
Should I use my first morning urine?

We do not recommend you use first morning urine, as it may cause an invalid result.
My test line is visible but not equal to the control line. Is this a positive?

A positive result is equal to or darker than the control line. If you see a result at the test line that is not at minimum equal to the control line, we encourage you to continue testing.
My test is positive. When will I ovulate?

Once you receive a positive result, we recommend that you consider yourself in a fertile window and plan intercourse. It is likely that ovulation will take place in the next 24-48 hours.
My test line became positive after the testing time frame. Is that a positive?

A positive test result will not change after the testing time frame. However, a negative test result should not be read after 30 minutes. If you are unclear, we recommend that you retest after limiting your liquid intake for two hours.
Can I use this test to determine pregnancy?

No. We encourage you to use BFP Pregnancy Tests to determine if you have conceived.
My test result is negative, but my other tracking tools show that I am fertile. What’s happening?

To help cover your fertile window, we recommend that you plan intercourse anytime you have a fertile indicator on a tracking tool (like saliva monitoring, cervical fluid, cervix position, etc.). Because an ovulation test is urine-based and can be subject to dilution, it may not be your first positive sign that you are moving into your fertile window.
Can women with irregular cycles use this ovulation kit?

Yes, women with irregular cycles can use these ovulation tests; however, they may end up using more tests in one cycle than women with regular cycles.
Is it better to do an ovulation test twice per day as opposed to just once?

The BFP Ovulation Test instructions call for testing once per day; however, some people do elect to test twice per day given that the LH surge can be brief, and factors like urine dilution can impact testing results. If you elect to test twice per day, try to test at the same times each day (i.e. once in late morning and once in early evening).
What time of day should I test?

The first-morning urine should not be used with this test. For best results, you should test around the same time each day. You should reduce your liquid intake approximately two hours before testing.