PhotoWhile trying to conceive, many women prefer not to leave timing up to chance alone. That’s where fertility apps and websites come in.

However, a recent study found that many websites and apps do not accurately predict a woman’s fertile window. Of 53 fertility calculators tested, only four were able to pinpoint a woman’s “precise fertile days.”

Now, wearable tech may be stepping in to provide women with a new way to increase their odds of becoming pregnant.

Five fertile days

Ovulation predictor kits can get expensive and temperature charting can be tedious -- but with the Ava bracelet, women only need to wear the device at night.

Throughout the night, sensors on the wearable measure three million data points that help predict the rise in reproductive hormones, including breathing rate, heart rate, sleep quality, and temperature.

After syncing the wearable to the Ava app in the morning, the device gives women a real-time update on their fertility. In a recent study, the bracelet was found to detect an average of 5.3 fertile days per cycle with 89% accuracy.

First-of-its-kind device

The Ava bracelet can significantly decrease the time it takes to get pregnant, says Ava Science CEO and co-founder Lea von Bidder.

"Even if you're tracking your periods to try to optimize your timing for conception, only about 30 percent of women have fertile windows that fall entirely within the time that clinical guidelines predict," von Bidder said in a statement. "That's why an accurate, reliable way to detect the full fertile window is such a breakthrough.

Adds von Bidder, “Ava can cut the time it takes to get pregnant in half."

The product, which retails for $199, is now available on the company’s website.

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