Gale recently had her first child. Early on in her pregnancy, she admitted to a doctor that she was still using marijuana. The next -- and only -- time it came up was in the delivery room. It set into motion a chain of events that highlight the ways legal cannabis can still clash with policies meant to protect children.

This is the third and final installment of our miniseries, "Medicine vs. Marijuana," about the ways legal weed can intersect with healthcare in America.