Wow you can find anything on the internet. Ba bam the famous Jamaican pregnancy study.
Jamaican pregnancy study finds no significant differences in developmental testing outcomes between children of marijuana-using and non-using mothers except at 30 days of age when the babies of users had more favourable scores on two clusters of the Brazelton Scales: autonomic stability and reflexes. The developmental scores at ages 4 and 5 years were significantly correlated to certain aspects of the home environment and to regularity of basic school (preschool) attendance.
So smoking cannabis while you're pregnant gives your 30 day old baby better balance and reflexes..
And here's more support for using cannabis during pregnancy. It's a fine counter to the anecdotal report of the 'bad' doctor who told the woman to use cannabis instead of what doctors normally prescribe. Opiates.
This stuff is really important because poor pregnant women often get tested for drugs. If they test positive for cannabis their kid goes to a foster home. If the knee jerk reaction on a site like this is 'smoking pot while pregnant is bad'. The logical next step is 'woman is a bad parent'.
An important aspect of the Jamaican study is that it took into account the background of the women tested. It'd be easy to test poor people in a ghetto who are more likely to smoke, drink, use narcotics, and engage in domestic violence to prove that cannabis users are bad parents. Glad that wasn't the case in the study.
And here's a counterpoint article.
I don't care for it too much. More anecdotes, more claims of delayed cognitive development without research sited, claims that using cannabis is risky because some samples from dispensaries in Toronto were found to be contaminated with Fentanyl. The one point they make that is useful is that only 25 women were used in the Jamaican study. I'd like to see at least a thousand if not a lot more.
The claim that the Jamaican study is useless because cannabis is illegal, people who use illegal drugs will lie about their drug use makes me not like the reporter that wrote the article. He is biased.