"Algorithms promise to detect the difference between real labor and a false alarm. Wearables give women a way to track contractions. Apps relay home blood pressure readings directly to doctors, offering a possible way to cut down on prenatal visits — and catch certain pregnancy complications before they become full-blown crises.
Doctors say the new technologies have the potential to transform prenatal care. But for all the promise, doctors caution that some direct-to-consumer devices might cause anxiety or unnecessary trips to the clinic — without strong evidence that they offer any real benefits to pregnant women."
https://www.statnews.com/2019/07/23/pregnancy-tech-help-headache/