Find your fertile window and increase your chances of conceiving.
Let’s get it on. Tracking your ovulation can increase your chances of getting pregnant by monitoring your LH levels to identify peak fertility. Our midstream ovulation tests take out the guesswork so you can get down to business. As low as $1.67 per test stick when you buy bulk and save.
"These are the prettiest things you'll ever pee on." -weeSpring
- Over 99% accurate
- Easy-to-use midstream tests with jargon-free instructions
- Satisfaction guaranteed ✨
Why We're Proud
100% Plastic Neutral
Our midstream ovulation tests are clinically proven to identify your fertile window.
Our ovulation sticks will help you get to know your body and its variations and identify your fertile window—aka the time when you're most likely to conceive.
- Your brain releases a surge of luteinizing hormone (LH) to tell your ovaries when it’s time to release an egg.
- The Natalist Ovulation test can identify that "LH surge" in your urine with over 99% accuracy.
- You’re most likely to get pregnant when you have sex during your LH surge, which indicates peak fertility.
- Our clear, jargon-free instructions will walk you through everything.
The first and only plastic neutral midstream ovulation test
Natalist is the first and only company in our space that carries a guaranteed net-zero plastic footprint. All our products are 100% plastic neutral. For every pound of plastic we sell, we facilitate the removal of a pound of plastic pollution—giving your purchase a net-zero plastic footprint.
We do our homework. See the research behind The Natalist Ovulation Test.
The Natalist Ovulation Test identifies your fertile window by detecting your LH surge.
Ovulation is induced by a surge of luteinizing hormone (LH), a hormone produced by the anterior pituitary in the brain. This LH surge, which occurs approximately 16-48 hours before ovulation, can be detected with over 99% accuracy by our easy home ovulation test. During your LH surge, an abundance of LH is excreted in urine, which the ovulation test kit will detect and display as a positive ovulation test result.
Ovulation tests are clinically proven to be accurate in predicting ovulation.
There are lots of options available to women when seeking how to track ovulation: basal body temperature (BBT) charting, cervical mucus tracking, salivary ferning, and home ovulation predictor tests. Multiple studies have evaluated the clinical accuracy of the above methods and home ovulation tests that detect urinary LH, like the Natalist Ovulation Test, have consistently been shown to be accurate in predicting ovulation.
Timing is critical when you’re trying to get pregnant. Our ovulation tests find your ideal time to conceive.
Timing is everything when trying to conceive. Calculating your fertile window, the days when you are most likely to conceive, is essential. It can be difficult to decode your biology to find that ideal time each month. If your cycle length is irregular or varying, it can feel impossible as your fertile window makes itself a moving target. If that’s you, our test kit can be especially helpful—the clear readout of the Natalist Ovulation Test result will tell you if you are in your LH surge or not, enabling you to confidently identify your window of peak fertility.
The Natalist Ovulation Test is FDA Registered.
The sale of home ovulation tests is regulated by the Food and Drug Administration (FDA) in the United States. Ovulation tests are classified as Class I medical devices and the FDA sets regulatory standards for their manufacture and distribution, and requires that all Class I device manufacturers are registered with the FDA (FDA Registered).
We do our homework. Here’s some of the research that went into making the Natalist Ovulation Test.
Direito, Ana, Sébastien Bailly, Aude Mariani, and René Ecochard. 2013. “Relationships between the Luteinizing Hormone Surge and Other Characteristics of the Menstrual Cycle in Normally Ovulating Women.” Fertility and Sterility 99 (1): 279–85.
Ecochard, Rene, Olivia Duterque, Rene Leiva, Thomas Bouchard, and Pilar Vigil. 2015. “Self-Identification of the Clinical Fertile Window and the Ovulation Period.” Fertility and Sterility 103 (5): 1319–25.e3.
Eichner, Samantha F., and Erin M. Timpe. 02/2004. “Urinary-Based Ovulation and Pregnancy: Point-of-Care Testing.” The Annals of Pharmacotherapy 38 (2): 325–31.
Fehring, Richard J. 1990. “Methods Used to Self‐predict Ovulation A Comparative Study.” Journal of Obstetric, Gynecologic & Neonatal Nursing 19 (3): 233–37.
Guermandi, Ellade, Walter Vegetti, Massimiliano M. Bianchi, Anna Uglietti, Guido Ragni, and Piergiorgio Crosignani. 2001. “Reliability of Ovulation Tests in Infertile Women.” Obstetrics & Gynecology 97 (1): 92–96.
Jones, Georgina, Jill Carlton, Sarah Weddell, Sarah Johnson, and William L. Ledger. 2015. “Women’s Experiences of Ovulation Testing: A Qualitative Analysis.” Reproductive Health 12 (December): 116–116.
Leiva, Rene Antonio, Thomas Paul Bouchard, Saman Hasan Abdullah, and René Ecochard. 2017. “Urinary Luteinizing Hormone Tests: Which Concentration Threshold Best Predicts Ovulation?” Frontiers in Public Health 5 (November): 320.
Lloyd, R., and C. B. Coulam. 1989. “The Accuracy of Urinary Luteinizing Hormone Testing in Predicting Ovulation.” American Journal of Obstetrics and Gynecology 160 (6): 1370–72; discussion 1373–75.
Manders, Marlies, Luke McLindon, Brittany Schulze, Michael M. Beckmann, Jan A. M. Kremer, and Cindy Farquhar. 2015. “Timed Intercourse for Couples Trying to Conceive.” Cochrane Database of Systematic Reviews.
Su, Hsiu‐wei, Yu‐chiao Yi, Ting‐yen Wei, Ting‐chang Chang, and Chao‐min Cheng. 2017. “Detection of Ovulation, a Review of Currently Available Methods.” Bioengineering & Translational Medicine 2 (3): 238–238.
Commonly asked questions about the Natalist Ovulation Test
How do I use these ovulation tests?
Read more in our PDF instructions.
When should I take the ovulation test?
It varies depending on the length of your menstrual cycle—but the short answer is 7-11 days after your period begins.
How do I interpret my ovulation test?
What is the sensitivity level (mIU/mL) of your tests?
The test can detect LH hormone levels in a urine sample at 25 mlU/mL. Read more in the blog post, Does Ovulation Test Sensitivity Matter?
Do I have to pee directly on the test, or can I pee in a cup?
You can either pee directly on the ovulation test stick, as shown in the instructions, or dip the test into a cup of urine. Either way, be careful not to pee above the arrow, on the test window!
Where does the Natalist Ovulation Test stand?
The Natalist midstream ovulation test is a qualitative test with a sensitivity level of 25mIU/mL. In a 2014 study of 40 volunteers, there were LH levels recorded that broadly ranged from 6.5 mIU/mL to 101 mIU/mL, with a median of 44.6 mIU/mL. A common threshold to detect LH is 25-30 mIU/mL which accommodates tracking from a baseline level (<10 - 20mIU/mL) to an identified peak or surge (>20-40+ mIU/mL).
What does it mean if my test line never gets as dark as the control line?
There are a few reasons you could not get a positive test one month. When it comes to your ovulation test stick, faint test lines could mean that you missed your window for an LH peak or surge this cycle, you might not be ovulating every month, or your LH levels might be <25mIU/mL (and using a sensitive test to establish a baseline and track for a peak or surge will help to identify your fertile window). Tracking your ovulation each month with our ovulation predictor tests will provide you with results to make informed decisions based on your unique cycle.
What Does a Positive Result Mean?
A positive result signifies the presence of an “LH surge,” indicating that ovulation is likely to happen soon. An LH surge refers to an increase in the hormone level of luteinizing hormone that plays a vital role in signaling a woman’s body to release an egg from the ovary, a key indicator of ovulation and a woman’s fertile days to get pregnant.
Is this product FSA/HSA eligible?
Yes! This product is eligible for FSA and HSA reimbursement. You can either use your HSA debit card at checkout, or use the itemized receipt (which will be in your inbox after you make a purchase). Read more about submitting for FSA and HSA reimbursement here.
All Natalist products and packaging are certified plastic neutral.
All Natalist products and packaging are 100% plastic neutral. For every pound of plastic we sell, we facilitate the removal of a pound of plastic pollution—giving your purchase a net-zero plastic footprint.