Cannabis during pregnancy bumps psychosis risk in offspring. by drgreencerts | Apr 2, 2019 | News | 0 comments Twitter Facebook Pregnant women who use cannabis may slightly increase the risk their unborn child will develop psychosis later in life, suggests new research from Washington University in St. Louis. Click here to read more. Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.