Tech innovators want to ensure safer pregnancies in India, which reports some of the highest maternal and newborn deaths in the world — When Rani Kalyan Parad, a 26-year-old woman from the western Indian state of Maharashtra, learned that she was pregnant with her first child four years ago, she was overjoyed. Nine months later, when her son arrived, the elation turned into her biggest heartache. The boy weighed a total of 2.5…