During your pregnancy there are lifestyle choices that can have a positive or negative impact on your pregnancy and birth journey. It’s important to consider how you can improve your health and keep your baby safer during pregnancy. Read on to find out more about specific issues, or have a look at LiveWell Dorset’s information on looking after yourself and your baby in pregnancy.

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Maintaining a healthy weight throughout pregnancy is one of the most important things that you can do for your own health and your baby’s health. Being overweight or underweight can have a big impact on both of you.

If you are underweight (i.e. your body mass index (BMI) is below 18.5), this can impact your baby’s growth. It also increases your risk of miscarriage, premature birth and developmental issues for your baby such as gastroschisis (a condition where their stomach doesn’t develop properly). If your BMI is 18 or below at your booking appointment, you will be referred to a consultant for additional antenatal care and monitoring, such as additional growth scans. Your consultant can refer you to other services, such as a dietician or the perinatal mental health team, depending on your personal circumstances. Read more about being underweight during pregnancy.

If you are overweight and your BMI is over 30, this can cause additional complications for you and your baby. NHS UK recommends that you don’t try to lose weight during your pregnancy as this may not be safe, and there is no evidence that losing weight will reduce the risks.

Women across Dorset with a BMI of 35 or more at their 12-week scan will be offered additional help and support throughout their pregnancy. This varies depending on which hospital you are attending for your antenatal care.

How your weight may affect your labour and delivery – PDF

How your weight may affect your labour and delivery – Word document


A healthy well-balanced diet is important in any stage in life but especially in pregnancy. You do not need to go on a special diet to lose weight or “eat for two”.  It is important to make sure your body is getting the vitamins and minerals it needs and your baby needs.

During your first trimester you may find that you go off a lot of food and/or drinks or are experiencing nausea. It is important you try to stay hydrated throughout and find foods that you can stomach. You may find that eating little and often rather than big meals can help.

Fibre should be an important part of your diet in pregnancy. Your digestion can slow up when you are pregnant so eating fibre can help this – fruit and vegetables are good for this and also contain vitamins and minerals you need.

Make sure any food being prepared is thoroughly cleaned before cooking and that meat you eat during your pregnancy is thoroughly cooked. It is recommended you avoid having more than 2 portions of oily fish a week as this can contain pollutants.

Eggs produced under the British Lion Code of Practice are safe for pregnant women to eat raw or partially cooked, as they come from flocks that have been vaccinated against salmonella.

These eggs have a red lion logo stamped on their shell. Pregnant women can eat these raw or partially cooked (for example, soft boiled eggs).

A healthy diet during pregnancy

Eating disorders during pregnancy

Being active during pregnancy has many benefits for your physical and mental wellbeing.

These include:

  • Help in reducing high blood pressure problems
  • Help in controlling weight gain
  • Improved sleep
  • Help in preventing diabetes of pregnancy
  • Improved fitness
  • Improved mood

If you have an uncomplicated pregnancy and you are already active it is safe to continue with physical activities throughout pregnancy.

If you’re new to activity, starting gradually and build up your activity levels over time.

Aim for 150 minutes of moderate intensity physical activity spread throughout the week. You need not do it all at once – every active minute counts!

Activities can include walking, exercise classes, taking the stairs, swimming, gardening and housework or any activity that makes you breathe faster whilst still being able to hold a conversation.

Try to include strength and balance activities twice per week e.g. walking uphill, taking the stairs, carrying shopping bags, and pregnancy yoga.

There is no evidence that being active during pregnancy is harmful to healthy women or their babies. Listen to your body and adapt. If it feels pleasant keep going, if it is uncomfortable stop and seek advice.

Remember not to bump the bump – avoid activities with an increased risk of injury through physical contact or falling/trauma.

If you’re unsure seek advice from your midwife, health visitor or other healthcare professional.

You can find more information about the types of activity that are recommended on the NHS website.

For guided activity videos that you can follow at home visit the This Mum Moves website.

If you plan to take vitamin supplements in pregnancy you need to make sure you are getting the right ones. You must avoid Vitamin A in pregnancy so getting specified pregnancy vitamins is important.

Folic acid 400 micrograms should be taken every day until you are 12 weeks pregnant (unless your GP or midwife recommends a different dose). If you have been trying to conceive it is best to start this before falling pregnant. If not, it is recommended to start it as soon as you know you are pregnant. Folic acid helps prevent birth defects known as neural tube defects, including spina bifida  (this is when the baby’s spinal cord does not form properly).

Vitamin D is also important in pregnancy and when you are breastfeeding. It is recommended to take 10 micrograms every day. Vitamin D regulates the amount of calcium and phosphate in the body – this helps keep bones, teeth and muscles healthy.

Some pregnant women have been found to be at increased risk of coronavirus (due to having lower levels of vitamin D) and require a higher dose of Vitamin D – 25 micrograms a day.

Other supplement you may want to consider are: iron and Vitamin C. Extra calcium in your diet can be beneficial in pregnancy.

You may be eligible for the Healthy Start scheme, which provides vouchers to buy milk and plain fresh and frozen fruit and vegetables at local shops. You can also get coupons that can be exchanged for free vitamins. If you’re not eligible for the Healthy Start scheme, some NHS organisations still offer the vitamins for free, or sell them. Ask a midwife about what’s available in your area.

Vitamins in pregnancy leaflet

Vitamins, supplements and nutrition in pregnancy – NHS UK

Your mental health during pregnancy and after birth is very important to us. It is just as important to take care of your mental health as it is to take care of your physical health, but it can be harder to realise that there’s a problem or admit that you need some extra help.

In the UK, up to 1 in 5 women develop some form of mental health problem during their pregnancy or in the year after birth (sometimes called the “perinatal period”).

Most of us have heard of postnatal depression (PND), but you might not be aware that some women also suffer from antenatal depression (depression during pregnancy). This is a time of so much change, to your body and your hormones as well as to your life in general, so it’s understandable that lots of women struggle with their emotions during pregnancy.

It’s important to remember that depression and anxiety during pregnancy are common, and can be treated, but there are also lots of things you can do yourself to improve your emotional wellbeing. You could try:

  • Meditation, relaxation and breathing exercises
  • Asking family and friends for practical help
  • Meeting up with friends for an activity you enjoy
  • Take some time for yourself
  • Talking to trusted family or friends

If you find that these steps aren’t helping and you are still struggling, you can get help and advice from your midwife or GP.

If you experience any of the following symptoms, it’s best to talk to someone:
• Anxiety, worrying or feeling low most of the time for more than two weeks
• Loss of appetite
• Not wanting to get out of bed
• Having unpleasant thoughts that you can’t control
• Panic attacks
• Feelings of dread, guilt or worthlessness
• Finding that you need to repeat certain actions (e.g. washing your hands, turning lights on and off) to make yourself feel better
• Feeling so terrified of labour / birth that you feel unable to go through with it
• Losing interest in the things you usually enjoy
• Thinking you are a bad mother or cannot cope with a baby
• Thinking about hurting yourself or suicide

Lots of women feel embarrassed or worried about admitting that they are struggling with their emotional wellbeing, but there is no need to feel this way. Your midwife and your general practitioner (GP) will have helped lots of pregnant women with their mental health, and everyone involved in your care wants to help you.

You can also refer yourself to Steps 2 Wellbeing to access talking therapies if you’re feeling sad, anxious, low or stressed.

If your mental health issues are severe, your midwife may refer you to the perinatal mental health team for assessment and treatment

Some women suffer from a fear of labour and birth, also known as tokophobia. This happens more commonly in women who have had previous children, especially if they have had a traumatic birth experience, but it can also occur in your first pregnancy. Women who’ve had lots of gynaecological problems or a history of sexual abuse are also more likely to suffer from this issue. Tokophobia can get worse as your pregnancy progresses it’s best to speak to your midwife about this as early as possible in your pregnancy. They can refer you for help and support, and to the Birth Choices clinic if you need to discuss your birth options.

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Take a look at the following links for more information and support:

Smoking during pregnancy has been linked to various health issues for both mum and baby.

The good news is, if you manage to quit smoking by the 15th week of your pregnancy and remain smoke free, the risks to your baby in terms of growth and development can be reduced to that of a woman who has not smoked. Find out more about the benefits of quitting smoking during pregnancy.

New guidelines mean that you will have your carbon monoxide levels tested at each midwife or consultant clinic appointment, to ensure that the staff can give you the help and support you need. Carbon monoxide is an odourless poisonous gas. Breathing it in can make you very unwell and it can kill if you’re exposed to high levels. Carbon monoxide is produced when fuels do not burn fully. Incorrectly installed, poorly maintained or poorly ventilated appliances such as cookers and boilers are some of the most common causes of accidental exposure to carbon monoxide. Blocked chimneys, faulty car exhausts, paint fumes and cigarettes can be other causes of carbon monoxide poisoning. Alongside the health risks to yourself it can also be harmful to your unborn baby. Babies exposed to carbon monoxide during pregnancy are at risk of prematurity, low birth weight (making them more susceptible to infection), stillbirth, neonatal death and behavioural problems.

In order to prevent carbon monoxide poisoning you should get a registered engineer to install any appliances in your home, maintain and service appliances as recommended by manufacturer, quit smoking, make sure all chimneys are swept regularly and you can install a carbon monoxide alarm in your home to alert you if there is a leak. Read more on carbon monoxide here.

Throughout Dorset there are specialist Smoking in Pregnancy Support Services to help you quit. The services are run by qualified midwives who have completed specialist training to support you to give up smoking. The specialist one-to-one support and the treatments provided mean you are four times more likely to be able to quit, and to remain smoke free, than if you tried to quit alone. At your booking appointment, your midwife can refer you to the relevant service so they can offer you support right from the start of your pregnancy.

Learn more about the use of e-cigarettes in pregnancy.

Drinking alcohol at any stage during pregnancy can cause harm to your baby – the more you drink, the greater the risk. This is why the advice for pregnant women that the safest approach is to not drink alcohol at all during pregnancy. 

Drinking at any stage during pregnancy can lead to miscarriage, stillbirth, premature birth, small birth weight and Fetal Alcohol Spectrum Disorder (FASD). FASD is the term used to describe abnormalities resulting from a fetus’s exposure to alcohol, including Fetal Alcohol Syndrome (FAS).

Fetal Alcohol Syndrome (FAS) is a preventable, very serious, lifelong condition which is caused by drinking alcohol during pregnancy, which affects the way a baby’s brain develops.  Children with FAS have problems with brain development, abnormal growth, and have characteristic facial features that result from exposure to alcohol in the womb (or ‘during pregnancy’).

Get support. If you think you might have problems stopping drinking talk to your doctor or midwife.

Learn more about the use of alcohol and drugs in pregnancy from NHS Choices.

You can also read more about the use of alcohol and drugs during pregnancy from Wessex Healthier Together.

Please contact the following organisations for help:

Taking illegal drugs, street drugs, legal highs or medications that have not been prescribed for you can be extremely harmful to you and your unborn baby. If you are using drugs or struggling with a drug addition, it’s very important to speak to your midwife, GP or a specialist drug and alcohol service. Getting help early can protect your baby and keep you well.

You can contact the following organisations for help:

Some medications are safe to take during pregnancy, but others are not. If you are already taking any medications, speak to your GP about whether they are safe. Don’t stop taking any medications or reduce the dosage without speaking to your doctor.

If your GP or another doctor needs to prescribe any new medication for you during your pregnancy, they will check to make sure that it’s safe – make sure that they know you are pregnant. You can speak to your GP or pharmacist if you have any concerns.

Find out more about medications in pregnancy.

For most women, it’s safe to continue to have sex throughout your pregnancy, unless you are advised not to by a healthcare professional.

Some women find sex very enjoyable during pregnancy and find that their sex drive increases. Others find that they suddenly don’t want to have sex at all. Changes to your sex drive are usually related to the changes in your hormones, but feeling uncomfortable or self-conscious, feeling sick, being in pain, or being concerned about the baby can all impact your sex drive.

Make sure you talk to your partner about how you’re feeling, as this will help you to maintain other types of intimacy in your relationship.

Be assured that your baby will not be aware of what’s happening, and you can’t hurt your baby.

If you experience any bleeding during or after intercourse please contact 0300 369 0388 immediately.

If you are experiencing certain complications, you might be advised not to have sex for some or all of your pregnancy. If you receive this advice, you should follow it in order to keep your baby safe.

If you have any pre-existing health conditions, you should make an appointment to see your GP when you are trying to conceive for pre-conception advice or when you find out that you’re pregnant. This will give them the opportunity to review any medication you’re taking, and see whether you need additional care to keep you and your baby well. If you have been diagnosed with conditions such as high blood pressure, diabetes, epilepsy or thyroid issues, you should see your GP as early as possible in your pregnancy.

It’s also really important to tell your midwife about any pre-existing conditions at your booking appointment, and any other healthcare professionals you see during your pregnancy. This includes allergies, conditions you’ve suffered from previously, and any previous surgeries (including cosmetic procedures). This will ensure they can give you appropriate care, and monitor your health more carefully if needed.

If you are under the care of a consultant for your condition, it’s a good idea to inform them about your pregnancy. They can discuss any potential impact of pregnancy on your condition, and vice versa, and they can be involved in putting together your care plan. If they do have specific advice, ask them to write a summary that can be put into your antenatal notes, as not all hospitals and departments in Dorset share notes automatically.

The hormonal changes during pregnancy can cause bleeding gums, so it’s really important that you brush your teeth well twice a day with a fluoride toothpaste to avoid tooth decay.

NHS dental care is free during pregnancy and until your baby is one year old. We recommend that all pregnant women visit a dentist during pregnancy, especially if you are suffering from sore or bleeding gums.

Pregnancy itself can cause changes to your vision, as well as dry eyes. If you are having problems with your vision, you should arrange to see an optician.

Some infections or viruses can be harmful to you and / or your baby if you suffer from them during pregnancy. Please seek medical advice from your GP if you are concerned about any of the following:

Chicken pox

Chicken pox is a virus which is highly infections and can be dangerous to your baby. If you have already had chicken pox, you will most likely be immune to the virus and you don’t need to worry about being around children or adults with chicken pox during your pregnancy. If you’re unsure whether you’ve had it or not, you may be able to get a blood test to check your immunity.

If you are unsure whether you are immune or not and you think you have come into contact with chicken pox during your pregnancy, you should contact your GP or your midwife. Don’t attend the maternity unit unless you are told to do so, as this may spread the virus to other pregnant women.

Slapped cheek syndrome (Parvovirus B19)

This virus usually affects children, but adults can catch it too. If you catch it during pregnancy, it can be harmful to your baby.

If you experience a blotchy, red rash on your face, usually with a mild temperature, headache or sore throat, you should call your GP or midwife for advice.

Sexually transmitted infections (STIs)

Rates of some sexually transmitted infections, such as chlamydia, herpes and gonorrhea are increasing, and they can be harmful to your baby’s health. Others such as human immunodeficiency viruses (HIV) can be passed to your baby without appropriate treatment. If you are suffering from symptoms of an STI during pregnancy, or you think that either you or your partner may have been exposed to one, it’s very important to get tested. Find your nearest sexual health screening service here by entering your postcode.


Toxoplasmosis is a dangerous virus that’s often found in cat faeces, contaminated soil or contaminated meat. If an adult catches it, they’ll usually experience flu-like symptoms and won’t realise they have it. However, if you catch it during pregnancy, it can be harmful to your baby. It is rare so it is not tested for usually, but you should see your GP If you are concerned that you may have come into contact with toxoplasmosis. If you have a cat, ask your partner to handle the litter trays during pregnancy if possible, or use disposable gloves if you have to do it yourself. Avoid gardening if possible, or use gloves. It’s best to wash all fresh fruit and vegetables to remove any traces of soil.

Travelling can be more difficult during pregnancy, but there are things you can do to make it more manageable.


Although you may be able to cycle for much of your pregnancy, it’s best avoided if possible. Your joints are less stable, because of the hormone relaxin, and your centre of gravity changes as your bump grows. This can make cycling more difficult, and can increase the risk of you falling off your bike. A fall could hurt your baby, so we recommended not cycling, especially as your pregnancy progresses. If you usually cycle to work, see if you can find an alternative during pregnancy, such as public transport or getting lifts.

Public transport

Make sure you have a bottle of water with you, especially when it’s hot. If you are struggling to stand or feeling dizzy, ask someone for a seat. If you have a long bus journey, consider where you might be able to get off to use the loo if you get desperate! Some train companies offer first class seats to pregnant women so it’s worth checking with the train lines you use.

Car journeys

It’s very important to wear your seatbelt so that the horizontal strap sits under your bump, and the diagonal strap is between your breasts. Make sure the seatbelt is not across your bump, as this could cause an injury to you or your baby if you have an accident.

Long car journeys can be really uncomfortable, especially in later pregnancy. Make sure you schedule lots of stops to stretch your legs and use the loo. Be sure to take a bottle of water with you so you don’t get dehydrated.

You can drive during pregnancy, but you should stop driving yourself if you can no longer do so safely and comfortably. Avoid making long journeys on your own if you can – have someone with you who can drive so that you can share the driving, and they can take over if you need it. As you get bigger you may find it more difficult to drive.


Flying isn’t harmful to your baby but you should always get advice from your GP or midwife before flying.

You need to consider how many weeks you are when you plan to travel and, crucially, when you fly to come back. Most airlines will refuse to let you fly after 37 weeks, but some airlines have much stricter rules and earlier deadlines, so it’s important to check the rules with the airlines you’re using.

Many airlines and some countries will insist that you carry a letter stating that you are safe to fly, and confirming your due date. Your GP can provide this for you and there is usually a charge for this.

Airline travel increases your risk of deep vein thrombosis (DVT) so it’s important to discuss this with your GP or midwife before you fly. You can purchase compression stockings from a pharmacy which can help to prevent DVT and reduce swelling in your legs and feet. It’s really important to stay hydrated, do foot and ankle stretches, and keep moving around the plane when it’s safe to do so.

It it important to let your insurance know that you are pregnant in case you need any medical attention whilst you are abroad.

Travel vaccinations

You will need to have vaccinations before visiting certain countries, and it’s important to check this before you book a trip. Some of these vaccinations contain live bacteria, and may not be suitable for use during pregnancy, so speak to your practice nurse about this.

Read more about travel during pregnancy.