Higher Infant Death Risk Tied to Cannabis, Nicotine Use in Pregnancy

Pregnancy is already a full-time job: you’re building a tiny human, dodging unsolicited belly-touchers, and suddenly everyone has an opinion about deli meat.
The last thing you need is confusing information about cannabis and nicotineespecially when headlines sound like they were written by a stressed-out
alarm clock.

Here’s the bottom line: a growing body of research and U.S. medical guidance consistently advises avoiding cannabis during pregnancy and avoiding nicotine
in any form (cigarettes, vapes, pouches, “just one hit,” all of it). Newer data also suggests that using cannabis and nicotine together during pregnancy
may be linked to a higher risk of infant and neonatal death than using either substance alone. That doesn’t mean every exposure causes tragedybut it does mean
the safest plan is to skip both, and to get support if stopping feels hard.

This article breaks down what the research is actually saying, why co-use might be especially risky, and what you can do (without shame, scare tactics, or
a lecture in the tone of a disappointed houseplant). It’s for education onlynot medical adviceso please talk with your prenatal care team for personal guidance.

What the Research Is Saying (and What It Isn’t)

Researchers have long studied tobacco use in pregnancy and infant outcomes, including stillbirth and sudden unexpected infant death. Cannabis research in
pregnancy has expanded rapidly in recent years, partly because legalization has increased access andimportantlybecause many people assume “natural” means “safe.”
(Poison ivy would like a word.)

A key finding: combined exposure may carry higher risk

A large observational study published in 2024 examined outcomes when pregnant people used cannabis, nicotine products, or both. The study reported that
co-occurring cannabis and nicotine use was associated with higher rates of adverse outcomes, including infant and neonatal death, compared with using either substance
alone. Because this type of study observes real-world behavior rather than assigning exposures, it can’t prove direct causationbut it can identify meaningful risk
patterns that clinicians should take seriously.

Separate summaries and clinical commentary have highlighted that infant death rates were higher in the co-exposure group than in groups with no exposure, and higher
than single-substance exposure groups. This “stacking” effect is one reason health professionals are urging stronger counseling and clearer public messaging.

Important context: “associated with” doesn’t mean “guaranteed”

Pregnancy outcomes are influenced by many factorshealth conditions, stress, access to prenatal care, nutrition, housing stability, other substance use,
and more. Observational research tries to adjust for confounders, but it can’t perfectly account for everything. So if you used cannabis or nicotine while pregnant,
please don’t translate this into panic or self-blame. Translate it into a plan: talk to your clinician, reduce exposure, and ask for support.

Why Cannabis + Nicotine Might Be a Riskier Combo

The simplest explanation is also the least dramatic: two separate exposures can create two separate pathways to harmand those pathways can overlap.
Think of it like spilling water on your laptop and then “drying it” with a hair dryer on high heat. Each is unhelpful alone; together, they’re a very
expensive experiment.

Nicotine: a known threat to fetal development

Nicotine is not just “the addictive part.” It can affect fetal development, including brain and lung development, and nicotine exposure is linked with pregnancy
complications and adverse infant outcomes. Smoking during pregnancy has been associated with outcomes including preterm birth, low birth weight,
and increased risk for sudden infant death syndrome (SIDS).

Cannabis: THC can reach the fetus, and safety isn’t established

Major medical organizations warn that THC can cross the placenta. The concern isn’t only about “being high”it’s about how THC may interact with fetal development,
including neurological development, and how cannabis use may be connected to complications like low birth weight and preterm birth. Even where evidence is still
evolving, the absence of a known safe level is why U.S. guidance generally recommends avoiding cannabis in pregnancy and breastfeeding.

Shared routes of exposure and real-world patterns

Co-use often isn’t two neatly separated habits. People may smoke cannabis and cigarettes, vape nicotine and use THC products, or mix substances in ways that increase
exposure to combustion byproducts or aerosol chemicals. Add in inconsistent product labeling, variable potency, and contaminants, and you can see why clinicians are
wary of “I only use a little” as a safety strategy.

Cannabis During Pregnancy: What U.S. Health Guidance Emphasizes

If you’ve seen cannabis marketed as a nausea cure, sleep aid, or anxiety fix during pregnancy, you’re not imagining it. But public health guidance in the United States
is clear: avoid cannabis while pregnant. This includes products labeled “weed,” “marijuana,” “THC,” “CBD,” “delta-8,” edibles, vapes, tincturesanything under the
cannabis umbrella.

Common reasons people use cannabis while pregnant

• Nausea and vomiting: especially in early pregnancy
• Anxiety or stress: sometimes as an alternative to prescription medication
• Sleep problems: because pregnancy insomnia is rude
• Pain management: including headaches or chronic pain conditions

The challenge is that “it helps me feel better” is not the same as “it’s safe for fetal development.” If symptoms are driving use, it’s worth bringing that up directly
with your clinician. There are pregnancy-safe strategies for nausea, sleep, anxiety, and pain that don’t carry the same uncertainty.

What about CBD?

CBD is often treated like the “wellness” cousin of THC. But pregnancy is not the time for wishful thinking. CBD products may have inconsistent dosing, potential
contaminants, or trace THC. If a product is unregulated or loosely regulated, “what’s actually in here?” becomes a very real questionespecially when the customer is
a developing fetus.

Nicotine During Pregnancy: Smoking, Vaping, and “I’m Not SmokingIt’s Just a Vape”

Nicotine exposure in pregnancy is a big deal whether it comes from cigarettes, e-cigarettes, nicotine pouches, hookah, or “social vaping.” A vape is not a magical
loophole where nicotine becomes a friendly neighbor who returns your packages.

What nicotine exposure is linked with

• Pregnancy complications: including placental problems and premature rupture of membranes
• Fetal growth restriction: smaller babies and lower birth weight
• Preterm birth: earlier delivery
• Increased risk of SIDS/SUID: both prenatal exposure and smoke exposure after birth can increase risk

Why vaping still matters

E-cigarettes commonly deliver nicotine, which can harm a developing fetus. Public health agencies caution that e-cigarettes are not safe during pregnancy and are not
FDA-approved as smoking cessation tools. Some flavoring chemicals and aerosol components may also be harmful, and real-world use often involves frequent dosing
that can add up quickly.

If you switched from cigarettes to vaping to reduce harm, that may have felt like a smart stepand for some adults outside pregnancy, harm reduction discussions can
be nuanced. Pregnancy, however, changes the risk-benefit equation. The goal becomes nicotine-free, with evidence-based support.

Myth-Busting: The Things People Say (and the Reality Check)

“It’s legal, so it must be safe.”

Legal means permitted, not harmless. Alcohol is legal. Fire is legal. Neither belongs in a nursery.

“I only use a littlelike, basically micro.”

Research hasn’t established a “safe” threshold for cannabis in pregnancy, and nicotine’s risks don’t disappear at low doses. With fetal development, small exposures
can still matterespecially if they happen repeatedly.

“Cannabis is safer than anti-nausea meds.”

Some pregnancy-safe medications and non-drug strategies have known safety profiles supported by decades of data. Cannabis does not have that same level of pregnancy-specific
safety evidence, and THC exposure has plausible biological reasons for concern.

“Vaping is just flavored air.”

If it were just air, nobody would develop nicotine dependence from it. Nicotine is pharmacologically active, and pregnancy is a high-stakes context.

If You Used Cannabis or Nicotine While Pregnant: What to Do Now

Step one is not shame. Shame is a terrible health intervention. Step one is information and support.

1) Tell your prenatal care team (honestly)

Your clinician can’t help with what they don’t know. Many providers aim for nonjudgmental screening and counseling so they can support healthier outcomes, not punish
people for being human.

2) Make a realistic quit plan

For nicotine, counseling (including quitlines) is effective, and clinicians can discuss options and safety considerations. For cannabis, behavioral support, mental health
care, and addressing triggers (nausea, anxiety, insomnia) can help.

3) Replace the “why” (symptom relief) with safer tools

• Nausea: small frequent meals, ginger, vitamin B6 (if recommended), hydration strategies, prescription options when needed
• Anxiety: therapy, mindfulness approaches that don’t require a yoga personality transplant, pregnancy-safe medications when appropriate
• Sleep: sleep hygiene, relaxation routines, treating reflux/restless legs, clinician-guided options
• Pain: physical therapy, stretching, approved medications, targeted care for migraines or chronic pain

4) Reduce secondhand exposure

Secondhand smoke exposure is also linked with infant risks, including SIDS. Make your home and car smoke-free, ask partners to quit with you (solidarity is sexy),
and keep smoke/vape exposure away from the baby after delivery.

Protection After Birth: Because Risk Reduction Doesn’t Stop at Delivery

Infant safety is a whole ecosystem. If prenatal exposure happened, focusing on protective steps after birth matters even more.

Safe sleep practices (seriously, these save lives)

• Place baby on their back to sleep
• Use a firm sleep surface (crib/bassinet with fitted sheet)
• Keep soft bedding, pillows, and loose blankets out of the sleep area
• Room-share (not bed-share) when possible, especially if anyone smokes
• Keep the environment smoke-free

Nicotine exposureduring pregnancy and afterhas been associated with increased SIDS/SUID risk. A smoke-free home is one of the most powerful, practical steps
you can take.

How Clinicians Talk About This (When It’s Done Right)

The best prenatal care conversations about substance use are blunt about risk but compassionate about reality. People don’t use nicotine or cannabis because they enjoy
being judged. They use because they’re stressed, uncomfortable, nauseated, exhausted, in pain, or dependent. Treat the cause, not just the behavior.

Increasingly, professional guidance emphasizes universal screening and supportive counselingmeaning clinicians ask everyone, normalize the conversation, and offer help.
That approach improves honesty, reduces stigma, and makes it more likely people will accept support early.

Takeaways You Can Actually Use

• Avoid cannabis and nicotine during pregnancy; there’s no established safe level for fetal development.
• Co-use may be linked with higher risk of severe outcomes than using either alone, based on observational research.
• If you’ve used, talk to your clinician; the goal is support, not punishment.
• Use evidence-based quitting supports and address the underlying symptoms (nausea, anxiety, sleep, pain).
• After birth, focus on smoke-free environments and safe sleep to reduce SIDS/SUID risk.

Real-Life Experiences Around Cannabis and Nicotine in Pregnancy (A 500-Word Add-On)

People rarely wake up and think, “Today I’ll do something risky during pregnancy.” More often, they’re trying to cope. In clinics, support groups, and public health
programs, a few recurring “experience patterns” show up again and againstories that are different in details, but similar in the emotional math.

“I used cannabis because morning sickness was eating my soul.”

Some pregnant patients describe nausea that isn’t cute, isn’t brief, and definitely isn’t solved by crackers. A common experience is starting cannabis in the first
trimester because it seems to work fastespecially if friends say, “It helped me!” or dispensary staff present it like a wellness supplement. Later, many people say
they didn’t realize the guidance was “avoid entirely,” or they assumed edibles were safer than smoking. In supportive care settings, clinicians often focus on replacing
cannabis with safer anti-nausea plans: hydration strategies, nutrition adjustments, vitamin B6 options (when appropriate), and prescription medications with pregnancy
safety data. The most relieved patients are often the ones who finally hear, “We can treat the nausealet’s not make you white-knuckle this.”

“I quit cigarettes, but vaping felt like my compromise.”

Another familiar storyline: someone stops smoking (a major win) and switches to vaping, thinking it’s the responsible choice. They’ll say things like, “At least it’s
not smoke,” or “I’m using lower nicotine.” But many are surprised to learn that nicotine itself is the problem in pregnancynot just the smokeand that frequent vaping
can deliver a steady stream of nicotine doses throughout the day. A practical turning point is often tracking use honestly: “How many hits?” becomes “How many times did
I reach for it without thinking?” When people see the pattern, they’re more open to structured support like counseling, triggers planning, and clinician guidance on
quitting tools.

“My partner smokeswhat am I supposed to do, live in a bubble?”

Many families struggle with secondhand exposure. People describe it as the background noise of lifesomeone vaping in the car, smoke on clothes, “only outside” that
still drifts indoors. The most effective real-world fixes tend to be simple and specific: a strict smoke-free home and car rule, a designated outdoor area far from doors,
washing hands after smoking, changing outer layers, andwhen possiblequitting together. Couples often report that making it a “family health project” reduces conflict:
it’s not “you’re doing something bad,” it’s “we’re building a safer environment for the baby.”

“I’m scared to tell my doctor.”

This is one of the most common experiencesand one of the most solvable. People worry they’ll be labeled, judged, or punished. In practice, many clinicians aim for
nonjudgmental conversations because honest information improves care. Patients who decide to disclose often describe a surprising sense of relief: they finally get
tailored support instead of generic advice. If you’re anxious, one script that helps is: “I want to be honest because I want the healthiest pregnancy possible.
I need help stopping.”

The thread running through these experiences is not “bad choices.” It’s stress, symptoms, dependence, and misinformation colliding with a pregnancy that’s already
demanding. The best outcome usually comes from the least dramatic approach: clear facts, compassionate support, and a practical plan you can actually follow on a tired
Tuesday.

Conclusion

The most up-to-date U.S. guidance is consistent: avoid cannabis in pregnancy, avoid nicotine in pregnancy, and talk to your clinician early if either substance is part
of your life. Newer research suggests the combination may be associated with a higher risk of infant and neonatal death than using either substance alone, which is a
strong reason to treat co-use as a priority for counseling and cessation support.

If you’re pregnant and dealing with nausea, anxiety, sleep issues, pain, or nicotine dependence, you deserve help that’s evidence-based and nonjudgmental. The goal
isn’t perfectionit’s reducing risk and building a safer runway for your baby’s first year of life.