Marijuana use among pregnant women is rising, and so are concerns

9/11/18–Women who are pregnant or breastfeeding are using marijuana in increasing numbers. A 2017 JAMA study described both survey results and urine tests of nearly 280,000 pregnant women in Northern California, where marijuana for medical use was legalized in 1996. The study showed that in 2009, about 4 percent of the women tested used marijuana. In 2016, about 7 percent of women did. Those California numbers may be even higher now, since recreational marijuana became legal there this year. Read