NBC — More women are smoking marijuana while pregnant.
Government researchers analyzed data from over 467,000 women who were between the ages of 12 and 44.
Overall, 7% of the women said they smoked marijuana while pregnant in 2017.
That is an increase of just over 3% in 2002.
And the women who smoked while in the first trimester increased from nearly 6% to 12%.
Pot use during pregnancy has been associated with effects on fetal growth, including low birth weight.