Pot-use among the study subjects climbed from 4.2 percent to 7.1 percent from 2009 through 2016.
"We were concerned to find that the prevalence of marijuana use in pregnancy is increasing more quickly among younger females, aged 24 and younger, and to see the high prevalence of use in this age group", Young-Wolff said.
In 2009, only about four percent of pregnant women were using marijuana.
Prenatal exposure to marijuana has been associated with low birth weight, impaired brain development, and effects on behaviour.
In 2018, marijuana will be legally available for recreational use, suggesting that that even more pregnant women may have access to and indulge in it.
But the researchers believe that urine samples are likely to provide the most accurate picture of marijuana use in pregnancy, because people tend to hesitate about admitting such behaviors. Numerous chemicals in marijuana, like tetrahydrocannabinol, known as THC, could pass through a mother's system to her baby.
Among ladies who screened positive for cannabis utilize, 55 percent fizzled the lab tests however denied sedate use on the polls.
Maryjane use in pregnancy might be on the ascent to a limited extent in light of the fact that the authorization of restorative pot has influenced individuals to think about the medication as less risky, notwithstanding amid pregnancy, said Barbara Yankey, a general wellbeing analyst at Georgia State University in Atlanta who wasn't engaged with the examination. "California legalized medical marijuana use in 1996, so they have grown up with the idea of it not only not being illegal but being a medical therapy". However, self-reported data is notoriously unreliable. But even so, more mothers are willing to run the risk, it seems. According to one survey conducted between 2007 and 2012, 79 percent of women "reported perceiving little to no harm in prenatal [pot] use", the Kaiser team noted.
And women may even be using marijuana after they took the survey-on goal. "We recommend (pregnant women) stop immediately". However, she added, "there are many other ways to treat nausea and vomiting during pregnancy".