A recently published study, focused on a small group of pregnant women in Indiana, finds nearly all of them have detectable levels of a heavily-used herbicide in their body.

The free mobile app is called "Liv" and provides health information for women who are pregnant, are planning to become pregnant, or are already parents.

Doctors who can prescribe a medication for opioid addiction, and accept Medicaid, are already scarce. But even fewer will treat pregnant women. At this most vulnerable time, when both mother's and baby's lives are at stake, some doctors even drop their patients.

Even though most insurers cover the medicine women need to avoid withdrawal while pregnant, they require prior authorizations which can be riddled with bureaucratic hold-ups and clerical errors.