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Marijuana and pregnancy infographic.

Marijuana and Pregnancy (Text Version)

[Marijuana leaf illustration]

If you use marijuana during pregnancy, you may be putting your health and your fetus’s health at risk.

Possible Effects on Your Fetus

  • Disruption of brain development before birth [brain icon]
  • Smaller size at birth [baby icon]
  • Higher risk of stillbirth [baby icon]
  • Higher chance of being born too early, especially when a woman uses both marijuana and cigarettes during pregnancy [ultrasound image icon]
  • Harm from secondhand marijuana smoke [symbol of medicine]
  • Behavioral problems in childhood and trouble paying attention in school [symbol of medicine]

[Profile view of a pregnant figure, colored in shades of blue]

Possible Effects on You

  • Permanent lung injury from smoking marijuana [lungs icon]
  • Dizziness, putting you at risk of falls [bandage icon]
  • Impaired judgment, putting you at risk of injury [ambulance icon]
  • Lower levels of oxygen in the body, which can lead to breathing problems [breathing icon]

Did You Know?

  • Medical marijuana is not safer than recreational marijuana. Recreational and medical marijuana may be legal in some states, but both are illegal under federal law.
  • There’s no evidence that marijuana helps morning sickness (ask your obstetrician–gynecologist [ob-gyn] about safer treatments).
  • You also should avoid marijuana before pregnancy and while breastfeeding.

Marijuana and pregnancy don’t mix. If you’re pregnant or thinking about getting pregnant, don’t use marijuana.

[Marijuana leaf icon with a no symbol [red circle with a diagonal red line] in front of it]

If you need help quitting marijuana, talk with your ob-gyn or other health care professional.

[Marijuana leaf illustration]

Research is limited on the harms of marijuana use for a pregnant woman and her fetus. Because all of the possible harms are not fully known, the American College of Obstetricians and Gynecologists (ACOG) recommends that women who are pregnant, planning to get pregnant, or breastfeeding not use marijuana. ACOG believes women who have a marijuana use problem should receive medical care and counseling services to help them quit.

[ACOG logo]

PFSI012: This information is designed as an educational aid to patients and sets forth current information and opinions related to women’s health. It is not intended as a statement of the standard of care, nor does it comprise all proper treatments or methods of care. It is not a substitute for a treating clinician’s independent professional judgment. For ACOG’s complete disclaimer, visit

Copyright May 2018 by the American College of Obstetricians and Gynecologists. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, posted on the internet, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission from the publisher.