RECOMMENDED FERTILITY CHARTING PRODUCTS*
* I may receive a small payment if you purchase from my referral links. As an Amazon associate, I earn from qualifying purchases.
Ovulation Tests (OPKs)
We recommend the Wondfo brand.
If you don’t have access to the recommended OPK brands, you should look for another brand that has a sensitivity to LH of 25mIU/ml. Easy@Home, Clinical Guard, Fairhaven Health, Pregmate, and iProven are brands that fit this description. The brand does matter, as some do not have the needed sensitivity, and some claim to have the necessary sensitivity but don’t seem to work reliably.
If you are in a bind and need a test quickly without time to order online, an acceptable option available at brick and mortar pharmacies is the Clearblue ovulation test... just the cheap line-reading type. No need to purchase the fancy digital versions. However, if reading the OPK lines makes you anxious, the Clearblue Digital ovulation test (LH only) is a good option.
Paper Charting Journal
There’s a lovely, customizable charting journal available on Amazon here or directly from the designer here.
Ovulation Confirmation Tests
We recommend the Proov PdG tests.
Proov is a urine test that measures a metabolite of progesterone. You use first morning urine. You do the first test early in the cycle – you can pick any day between CD4-8. Then you can use another starting a couple of days after peak. The test should move from negative to a positive result as your progesterone levels rise after ovulation.
If you think you have missed peak with the monitor, you can try these to see if the result is positive and your suspicion is correct. If you are trying to conceive, you can test through 7-10 days after detection of the LH surge to check that your progesterone levels remain high.
Purchase directly from Proov here and try the coupon codes CES20 or NEWLOOK15 or PROOVIT to see if they still work for a discount.
You can also purchase them on Amazon here.
Wearable Temping Devices
This is a wearable device that takes your skin temperature multiple times per minute overnight. When you remove it in the morning, you sync it via Bluetooth to your phone and it then sends the data via wifi to the Tempdrop program, which then provides you a single representative temperature for the night. It improves with data, so the recommendation is to use it for 2 months before considering it reliable. If you have the Ovuview app you can sync it with the Tempdrop so you don’t need to manually chart. There’s a workaround to transfer its data to Kindara. It does not require you to be in regular cycles (or cycling at all) in order to work. You will need to change the battery every 8-9 months.
To get a discount on your Tempdrop, use the following link with the coupon code: MIKAYLA
This is a wearable device with a wristband. It takes your skin temperature and tracks a variety of other parameters such heart rate. It puts the results into its own app. You will need to manually transfer the temping result to your own charting app. The Ava has been designed for women trying to conceive, so you shouldn’t use its app to determine your rules for avoiding pregnancy, but its temperatures can be used in your chart to confirm ovulation. It does require you to be in regular cycles to work. When the battery expires after 2+ years, you will need a new device.
You can use my link below to get $20 off the price.
Manual Basal Body Temperature (BBT) Thermometers
This comes under several different brand names. It has a backlight, an alarm, and beeps quietly but not relentlessly. It stores 60 temps in its memory with time and date. It has a sturdy tip, suitable for vaginal temping as well as oral temping.
In grey https://amzn.to/3579cbX
In purple https://amzn.to/2qPorrd
In pink https://amzn.to/3525Jv1
https://amzn.to/2CQfa4B (hot pink)
http://amzn.to/2Qk42VN (BabyMad in Celsius)
This is the same as Domotherm, but in yellow with a different label. Flexible tip.
Amazon UK: http://amzn.to/2Kofzjf
Amazon France: https://amzn.to/33NqkTD
Domotherm Rapid 0830
This has a flexible tip for more gentle oral temping.
Amazon UK: https://amzn.to/32JV1rL
Amazon Germany: https://amzn.to/2QmdEiI
Amazon France: https://amzn.to/355Vvtw (delivers outside of France too)
Geratherm Classic glass thermometer
USA: https://amzn.to/2pkkzxX (Fahrenheit)
MABIS Basal Digital Thermometer (aka ReliOn)
Affordable, very good beginner’s thermometer.
USA Amazon: https://amzn.to/2NOQqjG
USA Walmart: http://bit.ly/2S5YmQF
Surgipack 6332 Ovulation Digital Thermometer
Terumo Electronic thermometer
Up & Up from Target
Another affordable, good intro-level thermometer
Veridian Basal Digital Thermometer