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๐ Own your fertility journey with science and style!
The Clearblue & Natural Cycles Ovulation Test Refill Pack includes 15 digital tests and a reader designed to work seamlessly with the Natural Cycles app. It detects the luteinizing hormone surge with over 99% accuracy, helping users identify their two most fertile days. Results are delivered in just 3 minutes with clear digital indicators. This refill pack supports natural birth control tracking by combining test data with basal body temperature and period info in the app, empowering users with precise, science-backed fertility insights.








| Best Sellers Rank | #56,076 in Health & Household ( See Top 100 in Health & Household ) #30 in Ovulation Tests |
| Customer Reviews | 4.2 out of 5 stars 131 Reviews |
K**S
Pricey, but worth it
I got these to go with my natural cycles thermometer and app(10/10 recommend if your are trying to track naturally!) it got here quick, and I think itโs super easy to use. It takes 3 minutes to check to see if your LH has risen. Iโve had a couple funky months with high stress so my cycle has been a little off, but using this to track ovulation has been great. Iโve used it for about 3 months now, off an on based on when the app suggest to check. Itโs been pretty accurate. I think that for the money itโs a little pricey, but it does offer ease of mind knowing when you are fertile and when you are not. Battery life is great, and overall great quality!
J**L
Postpartum Mom Approved
the only birth control I use and trust!
C**๏ฟฝ
Easy and accurate!
Definitely recommend and is very very accurate. Super easy to use, just like taking a pregnancy test and is a great deal. Way easier to use than the traditional lined strips.
L**Z
Easy to use!
These are very easy to use. Purchased them on sale and they really met my expectations.
J**U
Strips dont work
Out of 15 only 5 strips worked so far and all other of the strips when inserted read to try another one. PS, the packaging mentioned expiry date of 2026 so it feels I wasted so many strips, time and money. Since, the brand was recommended by Dr. I didnt even feel had options. Due to initial days failure itself , I started tracking with other company strip as well and was able to see, report progress. But this one kept failing every day. Since I had to use to product in hope for next one working and reporting per Dr. Instruction, I cannot even return and I hardly write review so even this feels I am being critical but I hope you make better decision after reading it or the company improves the quality, cz well what is amazon going to do for substandard products?
K**L
NC app
Works well either way the app. Expensive. Easy to use.
J**I
Worth it!
Really love the simplicity paired with the natural cycles app. I have used other ovulation tests but these are worth it if you use natural cycles.
R**.
Easy to use
Easy to use
Trustpilot
2 weeks ago
3 weeks ago