Quitting smoking during pregnancy is one of the most impactful things you can do for your baby’s health, and the earlier you quit, the better the outcome. Women who stop smoking before the 15th week of pregnancy reduce their risk of preterm birth and having a smaller-than-expected baby to the same level as someone who never smoked. But quitting at any point during pregnancy still improves outcomes, so it’s never too late to stop.
Why Quitting Matters for Your Baby
Smoking during pregnancy slows your baby’s growth before birth, which can result in a baby born too small even after a full-term pregnancy. It also increases the chance of premature delivery. Smoking doubles your risk of abnormal bleeding during pregnancy and delivery, which puts both you and your baby in danger.
The chemicals in cigarette smoke, particularly nicotine and carbon monoxide, cross the placenta and directly reach your developing baby. Nicotine narrows blood vessels and reduces oxygen delivery to the fetus, while carbon monoxide binds to your baby’s blood cells and further impairs oxygen transfer. This combination can starve your baby of the oxygen needed for normal development. These same risks apply to secondhand smoke exposure, so reducing the smoke in your environment matters too.
Behavioral Strategies That Work
Counseling-based approaches are the first-line recommendation for pregnant women who smoke. The American College of Obstetricians and Gynecologists endorses a structured counseling approach that involves identifying your smoking habits, understanding your willingness to quit, and building a concrete plan with follow-up support. In clinical trials, pregnant women who received cognitive-behavioral counseling had significantly higher quit rates than those who didn’t.
What does this look like in practice? You work with a provider or counselor to identify the situations that trigger your smoking, whether that’s stress, boredom, social settings, or a morning routine. Then you develop specific alternatives for each trigger. That might mean going for a short walk when a craving hits, keeping your hands busy with something, or practicing a breathing technique you’ve rehearsed in advance. The goal is to replace the automatic habit loop with a planned response before you’re in the moment.
Financial incentives paired with counseling have shown especially strong results. One large analysis found that pregnant women who received both counseling and incentive-based programs were more than twice as likely to stay quit compared to controls. Some programs offer gift cards or vouchers for reaching smoke-free milestones. Ask your prenatal care provider whether any incentive programs are available in your area.
Digital Tools Designed for Pregnancy
Several smartphone apps and text-messaging programs have been developed specifically for pregnant smokers. One example, SmokeFree Baby, was built around five core support areas: shifting your identity from “smoker” to “non-smoker,” managing stress without cigarettes, providing health information about your baby, encouraging you to use in-person support, and helping you substitute other behaviors for smoking. These tools provide automated daily support throughout pregnancy without requiring face-to-face appointments, which can help fill the gaps between prenatal visits.
Text-based programs and apps designed for the general population have been shown to increase quit rates, and pregnancy-specific versions have been found acceptable and engaging in pilot studies. They’re not a replacement for counseling, but they’re a useful addition, especially if you need support at 2 a.m. when a craving strikes.
Nicotine Replacement and Medications
Nicotine replacement therapy (patches, gum, lozenges) is sometimes considered when behavioral approaches alone aren’t enough. The decision involves weighing the known harms of continued smoking against the lower but still present nicotine exposure from replacement products. Your provider can help you evaluate this tradeoff based on how much you smoke and how far along you are.
As for prescription cessation medications, a systematic review of 18 studies found no strong evidence that bupropion caused harm during pregnancy. Babies born to women who took it had normal average birth weights (around 3,300 grams) and were delivered at a normal gestational age (about 39 weeks), with a congenital malformation rate of roughly 1%. However, the evidence was limited in quality, and data on the other major cessation medication, varenicline, was even more sparse. Neither medication has been clearly established as safe or unsafe during pregnancy, which is why behavioral strategies remain the preferred starting point.
E-cigarettes and vaping products are not recommended during pregnancy. The CDC’s position is clear: e-cigarettes should not be used by women who are pregnant. While vaping may help some non-pregnant adult smokers transition away from cigarettes, no tobacco or nicotine product is considered safe during pregnancy.
Handling Cravings Day to Day
Most cravings last only 3 to 5 minutes, even though they feel endless in the moment. Having a short list of go-to responses ready before cravings hit makes a real difference. Some options that work for many women:
- Physical movement. Even a brief walk around the block can interrupt a craving and shift your focus.
- Cold water or ice. Sipping ice water or holding something cold gives your hands and mouth something to do.
- Deep breathing. Slow, deliberate breaths mimic the inhale-exhale pattern of smoking and can ease the physical urgency.
- Changing your environment. If you always smoked in a specific spot or at a specific time, physically removing yourself from that setting breaks the association.
- Calling someone. Having one or two people you can text or call during a craving, who know what you’re going through, provides accountability in real time.
Monitoring your urges and writing down what triggered them helps you spot patterns. You might discover that your worst cravings come after meals, during a commute, or when you’re around a specific person. Once you know the pattern, you can plan around it instead of reacting to it.
Reducing Secondhand Smoke Exposure
Even if you successfully quit, being around other people’s cigarette smoke still poses risks. The same toxic chemicals, nicotine and carbon monoxide, can reach your baby through secondhand exposure. Nicotine in secondhand smoke constricts blood vessels and reduces oxygen flow to the fetus, while carbon monoxide binds to fetal blood cells and impairs the oxygen exchange between your blood and the placenta. This can contribute to fetal oxygen deprivation and increase the risk of preterm birth.
If you live with a smoker, ask them to smoke outside and away from doors and windows. Smoke particles cling to clothing, furniture, and car interiors, so even “going outside” doesn’t eliminate exposure entirely, but it significantly reduces it. This is also a conversation worth having with coworkers, family, and friends you spend time with regularly.
Staying Quit After Delivery
Quitting during pregnancy is a major accomplishment, but the postpartum period is when relapse risk spikes. Stress, mood changes, sleep deprivation, and the intensity of caring for a newborn are all common triggers. In one study, women with higher levels of depressive symptoms and perceived stress were significantly more likely to start smoking again after delivery.
Younger women, those with less education, and those who quit later in pregnancy face the highest relapse risk and tend to relapse faster. The flip side of the research is equally clear: women who maintained improvements in mood and stress levels were more likely to stay quit.
Strategies that help during this vulnerable period include building social contacts beyond your baby so you don’t feel isolated, finding realistic ways to manage stress (even five minutes of quiet time counts), addressing weight concerns with healthy postpartum nutrition rather than returning to cigarettes as appetite control, and using physical activity as a substitute for smoking. Planning ahead for high-risk moments, like your first night out, your first major argument, or a sleepless week, gives you a concrete response ready before the craving arrives.