Smoking and pregnancy

Q 1. Who should read this information?

A. This information is for you if you smoke and are either already pregnant or thinking about having a baby.

It is also for you if you are exposed to tobacco smoke at home. You may also find it helpful if you are the partner or a relative of a woman who smokes.

Many women find it difficult to stop smoking but it is one of the most important things you can do to improve your baby’s health, growth and development. It is also the single most important thing that you can do to improve your own long-term health.

When you stop smoking, you and your baby will feel the benefits immediately.

Q 2. Why is smoking in pregnancy harmful to me and my baby?

A. Just as smoking is bad for you, babies in the womb can be harmed by tobacco smoke because it reduces the amount of oxygen and nutrients that pass through the placenta from you to your baby.

Smoking when you are pregnant increases your risk of:

  • Miscarriage
  • Ectopic pregnancy (a pregnancy growing outside the womb)
  • Your baby dying in the womb (stillbirth) or shortly after birth – one-third of all deaths in the womb or shortly after birth are thought to be caused by smoking
  • Your baby being born with abnormalities – face defects, such as cleft lip and palate, are more common because smoking affects the way your baby develops
  • Your baby’s growth and health being affected – the more you smoke, the less healthy your baby will be, and a baby that is small due to smoking is more likely to have health problems when young and also later in life
  • Bleeding during the last months of pregnancy, which is known as an abruption (when the placenta comes away from the wall of the womb) – this could be life threatening for you and your baby
  • Premature birth, when you have your baby before 37 weeks of pregnancy.

Babies and children whose mothers smoke during pregnancy are also at greater risk of:

  • Sudden and unexplained death, known as sudden infant death syndrome (SIDS) – as well as happening to newborn babies, this can also happen to infants over 12 months: the risk is greater if you or your partner continue to smoke after she or he is born, particularly if you share a bed with your baby at night
  • Asthma, chest and ear infections, and pneumonia
  • Behaviour problems such as ADHD (attention deficit hyperactivity disorder)
  • Performing poorly at school.

Stopping smoking reduces all the risks described above.

Q 3. Will I be asked about smoking when I am pregnant?

A. Yes. From your first antenatal appointment, your obstetrician will ask whether you or any other member of the household smokes. This is important so that you and your family can be given support and help to stop smoking as early as possible. You will be asked how often you smoke and how much tobacco you smoke a day.

You will be given information about how smoking and passive smoking harms you and your baby.

Q 4. I am a smoker, so what should I do?

A. There is no safe level of smoking, either for you or your baby. The earlier you stop smoking, the greater the benefit to you and your baby, but it is important to know that stopping at any time during pregnancy is beneficial to some extent.

Reducing the number of cigarettes you smoke, is a positive step, although there is no evidence that this is better for your baby. Therefore, both you and your partner will be advised to stop completely – not just cut down.

Q 5. I don’t smoke but others around me do – Is my baby still at risk?

A. Yes. If you are exposed to other people’s tobacco smoke, it is known as passive smoking. Babies in the womb exposed to smoke in this way have a higher than normal risk of:

  • Being stillborn or dying soon after birth
  • Being born early
  • Their growth and health being affected.

Ask smokers to support you and your baby by smoking outside and not near you. This includes in the car.

Also, try to keep away from smoky places and people who are smoking.

Q 6. What help will I get to stop smoking?

A. You may be aware of the risks and want to stop smoking but find it really difficult to do so. If you smoke or have recently stopped smoking (within the last 2 weeks), you should be referred to a counsellor for support.

Typically, the counsellor will offer you one-to-one appointments, and will also suggest ways to help you cope with the cravings and withdrawal symptoms that you may have once you stop smoking. The length of time that you will need support will depend on you and your circumstances.

It may be difficult to begin with, but 4 out of 5 women who manage to stop smoking for 28 days do so for good. Your obstetrician will ask how you are getting on at each appointment and write in your notes whether you are smoking or not.

Your partner or other close family members and friends who smoke can support you by stopping too. This will improve the chances of you successfully giving up. They should be offered help and encouragement to stop too.

Q 7. Can I use nicotine replacement therapy (NRT) when I am pregnant?

A. Nicotine replacement therapies (NRT), such as patches, chewing gum, lozenges or mouth sprays, deliver clean forms of nicotine and are safe and effective aids for people who want to stop smoking.

It is safe to use NRT in pregnancy. Using NRT is safer than smoking because it doesn’t contain poisons such as tar or CO, but does provide you with some nicotine to help you manage any withdrawal cravings once you have stopped smoking.

Some drugs prescribed to help smokers stop are not safe to use during pregnancy or when breastfeeding.

Q 8. Can I use electronic cigarettes while I am pregnant?

A. Little research has been conducted into the safety of e-cigarettes in pregnancy. Using e-cigarettes is not entirely risk free but research on their use among the general adult populations shows that vaping is substantially less harmful than smoking tobacco and likely to be significantly less harmful to a pregnant woman and her baby than cigarettes.

If you’re pregnant, licensed NRT products such as patches and gum are the recommended option to help you stop smoking. But if you find using an e-cigarette helpful for quitting and staying smoke free, it’s likely to be safer for you and your baby than continuing to smoke.

Evidence shows that using both e-cigarettes and smoking (dual using) does not confer any health benefit over using just cigarettes. If you are using both e-cigarettes and smoking you should be supported to stop smoking.

Q 9. What else should I know?

A.

  • Women who smoke take longer to get pregnant. Smoking also affects the man’s sperm count.

 

  • Stopping smoking improves sperm count and quality.

 

  • If you stop smoking, your breast milk will be of better quality and you will produce more of it.

Q 10. What are the key points?

A.

  • Smoking in pregnancy is harmful to you and your baby.
  • Passive smoking can also harm you and your baby.
  • A baby that is small due to smoking is not a healthy baby.
  • If you smoke, the best thing you can do is stop. Stopping at any time in pregnancy will help, though the sooner the better.
  • You should stop completely (rather than just cut down), ideally before getting pregnant.
  • You and your partner will be offered help, advice and support to stop smoking.
  • Nicotine replacement therapy (NRT) is safe to use in pregnancy.