While there are several ways to entertain your unborn child with the latest chart toppers, the kind of technology that’s invaluable during pregnancy is typically reserved for hospitals and clinics. But a company called Bloomlifewants to bring one key piece of monitoring kit into the home. It’s created a pregnancy wearable — a small device that sticks to your baby bump — which measures contractions by reading the electrical activity of uterine muscle. A companion app for iOS and Android receives this data, timing contractions in real time and promising a much more accurate reading than existing contraction calculators.