Skip to main content
🎂 — | ♂/♀ M/F | ⚖️ — kg | 📏 — cm | BMI — | 👟 —
⚡ 88%
🩺 Drugs & Alcohol

Can You Use Marijuana During Pregnancy? What Every Expecting Mother Needs to Know About Baby's Safety

Dr. Priya Sammani (MBBS)
Medically Reviewed by Dr. Priya Sammani (MBBS) ✓ Medically Reviewed
📅 Updated: Oct 22, 2026 • ⏱ 8 min read • Editorial Policy
Can You Use Marijuana During Pregnancy? What Every Expecting Mother Needs to Know About Baby's Safety
Table of Contents ▾

Pregnancy is an exciting time in your life. You are getting ready to welcome a new baby into your family. It is also a time when you must plan carefully for every single choice you make.

Every bite of food you eat, every drink you take, and every medicine you use matters. Your growing baby shares everything with you inside the womb. Because of this, many expecting mothers wonder if using marijuana or cannabis is safe during pregnancy.

You might hear different stories and opinions from friends or family members. Today, let us look at the clear medical facts. We will explain how marijuana affects both you and your baby in simple words.

Key Takeaways at a Glance

  • Using marijuana during pregnancy can harm your baby's growing brain and overall health.
  • THC passes directly through the placenta from your bloodstream to your baby.
  • Marijuana is not a safe or proven medical treatment for morning sickness or anxiety.
  • Breathing in secondhand marijuana smoke around others is also dangerous for your baby.
  • Avoiding marijuana completely during pregnancy and breastfeeding is the safest choice for your child.
⚡ Interactive Clinical Tool
🤰

Baby's due date (EDD)

Calculate the due date based on the last menstrual period

Open Interactive Calculator →

How Marijuana Affects Your Baby During Pregnancy

Simply put, if you use marijuana while pregnant, you put your baby's health at risk. This danger happens whether you smoke it, vape it, or eat foods that contain cannabis, often called edibles. Medical research shows that cannabis use can cause serious health problems for newborns.

As an expecting mother, everything that enters your body reaches your baby. This transfer happens through an amazing organ called the placenta. The placenta supplies oxygen and nutrients to your baby every single day.

However, the placenta cannot block harmful chemicals. The main mind-altering chemical in marijuana is THC, which stands for tetrahydrocannabinol. THC crosses the placenta easily and enters your baby's developing bloodstream.

Once THC reaches your baby, it interferes with normal development. It targets your baby's growing body and especially their brain. Brain development is happening rapidly during these nine months. Any disruption can impact your child's future learning and behavior.

Let us look at the specific risks in the detailed comparison table below.

Who Is Affected Possible Risks and Health Complications
Your Developing Baby
  • Slower brain growth and altered neurological development before birth.
  • Higher risk of stillbirth or losing the baby late in pregnancy.
  • Premature delivery, meaning the baby is born too early before full term.
  • Low birth weight, making it harder for the baby to stay warm and healthy.
  • Future behavioral challenges, trouble focusing, and learning difficulties as the child grows.
You (The Mother)
  • Frequent dizziness, lightheadedness, and sudden fainting leading to dangerous falls.
  • Poor concentration, making it hard to make safe, clear everyday decisions.
  • Lower oxygen levels in your blood, causing breathing discomfort and fatigue.
  • Lung irritation and chronic cough from smoking plant material.

Studies show that women who use marijuana every day or in large amounts face even higher risks. Protecting your baby starts with understanding these dangers clearly.

Is Morning Sickness Relief a Real Benefit?

Some people believe that marijuana helps treat early pregnancy symptoms like nausea and vomiting, often called morning sickness. However, this is not a medically proven or safe treatment. The temporary relief some people claim to feel is far smaller than the permanent harm it causes the baby.

"Using marijuana to manage morning sickness, stress, or anxiety during pregnancy is never a safe or medically approved solution."

If you feel sick, tired, or anxious, you should talk to your doctor right away. There are many safe medical treatments available today. Your doctor can recommend safe medicines, vitamins, and simple diet changes.

Never try home remedies or unverified substances without asking a medical professional first. Your doctor wants to help you feel comfortable while keeping your baby completely safe.

Does Being Around Someone Else Smoking Matter?

This is another important question that many families ask. You might not use marijuana yourself, but what if someone near you smokes or vapes it?

Breathing in secondhand marijuana smoke is also harmful. Smoke contains toxic chemicals that enter your lungs and pass into your bloodstream. From your blood, those chemicals reach your baby.

Marijuana smoke has many of the same harmful toxins found in tobacco smoke. If family members or friends use marijuana around you, ask them politely to stop or step outside. Keeping your living space clean and smoke-free is vital for a healthy pregnancy.

After Birth and During Breastfeeding

Congratulations, your baby has finally arrived! Once the baby is born, you might wonder if it is safe to use marijuana again. If you plan to breastfeed your baby, you must still avoid marijuana completely.

When you eat cannabis, the THC chemical stays in your body. It passes from your bloodstream directly into your breast milk. When your baby feeds, they swallow that THC.

Exposing a newborn to THC through breast milk causes several worrying signs:

  • Your baby may look overly sleepy, sluggish, and lack normal energy.
  • Feeding can become difficult because the baby is too tired to latch or suck properly.
  • Physical growth and motor skills can develop much slower than normal.

Your baby's first months of life are critical for growth. Avoiding marijuana during the entire breastfeeding journey protects your baby's developing nervous system.

What Do Doctors and Health Experts Recommend?

Major medical organizations worldwide, including the American College of Obstetricians and Gynecologists (ACOG), the CDC, and the NHS, give very clear advice. They state that you should completely avoid marijuana in the following situations:

  • While you are currently pregnant.
  • If you are actively trying to get pregnant.
  • While you are breastfeeding your baby.

Some people think medical marijuana is safer because a doctor prescribed it for another condition. However, medical marijuana still contains THC. It is not safe to use during pregnancy or lactation.

If stopping marijuana use feels difficult, please do not feel ashamed or afraid. Talk openly with your doctor during your next visit. Doctors are here to support you, not judge you. They can connect you with counselors who specialize in helping mothers live healthy, substance-free lives.

When to Call Emergency Services

If you or someone you know experiences severe dizziness, sudden fainting, chest pain, trouble breathing, or signs of early labor after substance use, call 911 (US/Canada), 999 (UK), or go to your nearest Emergency Department (ER / A&E) right away.

Sources & References

1. American College of Obstetricians and Gynecologists (ACOG). Marijuana Use During Pregnancy and Lactation. Clinical Guidance. 2. Centers for Disease Control and Prevention (CDC). What You Need to Know About Marijuana Use During Pregnancy. 3. National Health Service (NHS). Cannabis use in pregnancy and breastfeeding. 4. Mayo Clinic. Pregnancy and substance use: Is marijuana safe? 5. National Institutes of Health (NIH) / PubMed. Prenatal cannabis exposure and neurodevelopmental outcomes.

❓ FAQ

Frequently Asked Medical Questions (FAQ)

Evidence-based clinical answers to common patient questions

Can small amounts of marijuana harm my baby during early pregnancy?

Yes. Even small amounts of THC can cross the placenta and affect early brain and organ development. Doctors recommend avoiding marijuana completely from the moment you plan to conceive.

Are edibles safer to eat than smoking marijuana while pregnant?

No. Edibles still contain THC and other active compounds that enter your bloodstream and reach your baby. While smoking harms your lungs, edibles deliver THC just as effectively to your developing child.

What should I do if I used marijuana before knowing I was pregnant?

Do not panic. Many women use substances before realizing they are pregnant. The most important step is to stop using right away and tell your doctor honestly at your next prenatal visit.

Can I use CBD products instead of THC during pregnancy?

Health agencies advise against using CBD products during pregnancy or breastfeeding as well. CBD products are poorly regulated and often contain hidden THC or contaminants that could harm your baby.

How long does THC stay in breast milk after use?

THC is stored in body fat and can remain in your system and breast milk for days or even weeks depending on how often you use it. Pumping and dumping does not clear it out safely.

🔍 Search Keywords: marijuana use during pregnancy • marijuana pregnancy • marijuana pregnancy symptoms • marijuana pregnancy causes and treatment • marijuana pregnancy sri lanka • Can You Use Marijuana During Pregnancy? What Every Expecting Mother Needs to Know About Baby's Safety

🩺 Articles For You

Discover the Amazing Benefits of Breastfeeding for You and Your Baby

Expecting a Baby? Discover How Prenatal Yoga Can Transform Your Pregnancy Journey

Navigating Breast Cancer During Pregnancy: What Every Expecting Mother Needs to Know

Hard as Stone and Agonizing to Touch: How to Relieve Breast Engorgement and Restore Milk Flow Fast

Mastering the Art of Breastfeeding: Your Complete Step-by-Step Guide

CVS test (Chorionic Villus Sampling) to find out about your baby's genetic diseases early

💬 Patient Questions & Comments (0)

Have a question or experience to share? Post a comment or reply to other readers below.

🛡️ Plain Text Only • No Links
👤

No comments yet. Be the first to share your question or experience below.

⚠️ Important: Medical articles and information on Nirogi Lanka are strictly for educational and awareness purposes and do not substitute professional medical advice, diagnosis, or treatment. Always consult a qualified physician for any medical concerns.