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As summer heats up, our data shows an increase in sexual activity: hot days, hotter nights. 😉

But summer’s not the only thing that’s heating up: when you ovulate, there is a basal body temperature rise of 0.2–0.45 °C—one well-known biological indicator that Natural Cycles uses to determine your fertile days.

Prepare for the summer and save 20% when you start preventing pregnancy today with the only hormone-free, FDA cleared birth control app!

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NaturalCycles Nordic AB

Luntmakargatan 26,

111 37 Stockholm

Sweden