How Natural Cycles detects ovulation – Customer Support, Contact Us

✅ Annual subscription includes daily fertility statuses, so you'll know if today is a red (fertile) day or a green (non-fertile) day, determined by

12 Month Subscription - Digital Birth Control with Basal Body Thermometer - Fertility Management App- (iOS and Android) - Ovulation Kit

✅ 6-month subscription includes daily fertility statuses, so you'll know if today is a red (fertile) day or a green (non-fertile) day, determined by

Natural Cycles 6 Month Subscription - Digital Birth Control with Basal Thermometer - Fertility Management App- (iOS and Android)

What do I need to use Natural Cycles? – Customer Support

How Natural Cycles works – Customer Support, Contact Us

Which fertility indicators does Natural Cycles use? – Customer Support, Contact Us

Ovulation Test Strips: Can They Help You Get Pregnant?

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Validation of urinary reproductive hormone measurements using a novel smartphone connected reader