The first pill for postpartum depression approved by the U.S. Food and Drug Administration is now available, but experts worry that minority and low-income women, who are disproportionately affected by the condition, won’t have easy access to the new medication. About 1 in 8 women experience symptoms of postpartum depression, federal data shows. Suicide and drug overdoses are among the leading causes of pregnancy-related death, defined as death during pregnancy, labor or within the first year of childbirth. Black, Indigenous, Hispanic and low-income women are more likely to be affected. Most a…