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Cannabis, pregnancy and breastfeeding

What health authorities advise about cannabis during pregnancy and breastfeeding, clearly and without judgment.

Cannabis, pregnancy and breastfeeding
Image: Cute baby shoes & pearls / rawpixel

This is one topic where the guidance is clear and worth stating plainly: health authorities advise avoiding cannabis during pregnancy and breastfeeding.

The guidance

Health Canada and medical bodies recommend not using cannabis, in any form, including CBD, while pregnant or breastfeeding. THC and other compounds can cross the placenta and pass into breast milk.

Why

  • Fetal development. THC can affect the developing brain; research links prenatal exposure to potential effects on birth weight and later development.
  • Breast milk. THC is fat-soluble and can accumulate in milk, reaching the baby.
  • No established safe amount. Because there’s no known safe level, the advice is to avoid entirely.

”But it helps my nausea”

Morning sickness is genuinely tough, and some people consider cannabis for it. The recommended path is to talk to a healthcare provider about safer, evidence-based options rather than self-treating with cannabis.

No judgment, just information

If you’ve used cannabis and then learned you were pregnant, you’re not alone, talk to your provider honestly. They’re there to help, not to judge.

The consistent medical advice is to avoid cannabis during pregnancy and breastfeeding. For anything specific, your healthcare provider is the right source.

Sources

Frequently asked questions

Is it safe to use cannabis while pregnant?

Health Canada advises against any cannabis use during pregnancy. THC crosses the placenta, and the guidance is to avoid it entirely. Talk to your healthcare provider.

Can I use CBD during pregnancy?

No form of cannabis, including CBD, is considered safe during pregnancy. The advice is to avoid all of it.

Does cannabis pass into breast milk?

Yes, THC can pass into breast milk and linger there. Health authorities advise against cannabis while breastfeeding.

What if I used cannabis before I knew I was pregnant?

Try not to panic, but stop now and let your healthcare provider know. They can advise for your situation without judgment.

Know your local rules

Legal age, where to buy, and where you can use it all change by province.

Find your province

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