More pregnant women using marijuana, study finds

(CBS NEWS) – An analysis of urine samples from roughly 300,000 California women finds that more than 7 percent used marijuana while pregnant.
What’s more, rates of pot use in pregnancy have steadily risen over the years — from 4.2 percent of women in 2009 to 7.1 percent just seven years later.
That’s according to the new report from Kaiser Permanente Northern California, a major regional health care group.
“Use among [pregnant] females younger than 18