Cannabis use is becoming increasingly common in Canada, including among pregnant women/individuals. A lack of data on the short and long-term effects of cannabis use on the growing fetus has made it difficult for families to make informed choices during pregnancy and for health care providers to answer questions and provide counselling.


We are conducting a research study that explores patterns of cannabis use/intake among pregnant women/individuals, their partners and the effects that cannabis use/intake might have on pregnancies and babies.

Why is this study being done?

The purpose of this study is to assess the feasibility of a larger research study on cannabis use/intake in pregnancy.

We are recruiting two groups of people:

  • Pregnant women/individuals who are using/consuming cannabis products in pregnancy
  • Pregnant women/individuals who have NOT used/consumed cannabis in pregnancy

In addition to helping us design future studies on cannabis use/intake in pregnancy, the findings from this study will provide valuable pilot data for answering research questions about how cannabis is used/consumed in pregnancy, and its effects on pregnancy and child health.

What will happen during this study?

If you decide to participate, you will be asked to complete electronic surveys and give biological samples during your pregnancy and after you have delivered. We will also ask to collect samples from your baby(ies) after they are born. 

All aspects of this study are voluntary. You will be free to stop your participation at any time. 

In recognition of your involvement, you will receive a $10 gift card at each in-person study visit for sample collection. You will also receive an additional $20 at the end of the study. A manual breast/chest pump will also be provided to you. We will cover your parking expenses and/or bus-fare incurred for any study visits.

You might be eligible if:

  • You are planning to deliver in Ottawa or Kingston, Ontario
  • You have not used controlled or illegal drugs in the 3-months before or during your current pregnancy.

If you want to participate:

If you think you might eligible to participate in this study, please contact the study team at 613-737-8899 ext. 73840 or you may fill in the “Contact Us” form below and we will contact you.

Note: Your contact information will be securely sent to the appropriate participating site based on your location of delivery. The study team from the site will contact you directly.