Pregnancy Safety: A Practical Guide for Expectant Parents

Navigating the Information Overload

Pregnancy is a time when information floods in from every direction: books, apps, well-meaning relatives, and an internet that provides something alarming for every search. The challenge is not finding information but knowing which information to trust and which to set aside. This guide focuses on the evidence-based safety guidance that matters most, presented practically and without unnecessary anxiety.

The foundation of safe pregnancy is attending your antenatal appointments, building a good relationship with your midwife, and knowing when something warrants a call to a health professional. Everything else builds on that foundation.

Food Safety in Pregnancy

Food safety is one of the areas where the guidance is most specific and most important to follow. Certain foods carry a genuine risk of infection that is particularly dangerous during pregnancy.

Raw or undercooked meat, including cured meats like Parma ham and salami, can carry toxoplasma, a parasite that can cause serious harm to a developing baby. All meat should be cooked until there is no pink remaining and juices run clear. Pate, including vegetable pate, should be avoided due to the risk of listeria. Unpasteurised milk and dairy products, including some soft cheeses such as brie, camembert, and blue-veined cheeses, should also be avoided. Hard cheeses and those clearly labelled as made from pasteurised milk are safe.

Raw or lightly cooked eggs should be avoided unless they carry the British Lion stamp, which indicates hens vaccinated against salmonella. This means avoiding foods like homemade mayonnaise, mousses, and some ice creams unless you can confirm the eggs used are Lion-stamped.

Certain fish should be limited or avoided. Shark, swordfish, and marlin should not be eaten at all due to high mercury levels. Tuna should be limited to no more than two steaks or four medium-sized cans per week. Oily fish is highly nutritious and beneficial, but should be limited to two portions a week as it can contain pollutants. White fish and shellfish (when properly cooked) are safe and good sources of protein.

Caffeine should be limited to 200mg per day, roughly equivalent to two mugs of instant coffee. Alcohol has no established safe level in pregnancy, and the NHS guidance is to avoid it entirely throughout.

Exercise and Physical Activity

Exercise during pregnancy is strongly recommended for most women. It supports cardiovascular health, can reduce the risk of gestational diabetes, helps manage weight, improves sleep, and is associated with easier labours and faster recovery. The NHS recommends at least 150 minutes of moderate-intensity activity each week throughout pregnancy.

Activities that are generally safe and beneficial include walking, swimming, cycling (on a stationary bike in later pregnancy when balance changes), yoga (pregnancy-specific classes are ideal), and low-impact aerobics. If you were running or doing high-intensity exercise before pregnancy, you can usually continue with modifications, particularly in the first and second trimesters, but listen to your body and reduce intensity as needed.

Activities to avoid include contact sports, sports with a risk of falling such as horse riding and skiing, and any exercises lying flat on your back after 16 weeks, as this can compress major blood vessels and reduce blood flow. Scuba diving should be avoided throughout pregnancy.

Stop exercising and seek medical advice if you experience chest pain, severe shortness of breath, dizziness, painful contractions, or reduced foetal movement during or after exercise.

Work and Legal Rights

UK law provides significant protections for pregnant employees that are worth knowing from early in your pregnancy. You are entitled to paid time off for antenatal appointments, and this right extends to your partner for up to two appointments. Your employer cannot make you work in conditions that are unsafe during pregnancy, and they are legally required to carry out a risk assessment for pregnant employees and make reasonable adjustments.

Maternity leave and pay rights are among the most important legal protections available. You are entitled to up to 52 weeks of maternity leave regardless of how long you have worked for your employer, though the rate of Statutory Maternity Pay depends on your earnings and how long you have been employed. Contact ACAS or Citizens Advice if you believe your employer is not meeting their legal obligations.

Travel During Pregnancy

Most travel is safe in the first and second trimesters, with more caution warranted as you approach your due date. The second trimester, weeks 14 to 27, is generally considered the safest and most comfortable time to travel.

If flying, most airlines will carry you without restriction before 28 weeks for a single pregnancy and before 32 weeks for multiple pregnancies, but always check with your specific airline. After these points, a letter from your midwife or GP confirming your due date and that there are no complications may be required. On long flights, move around regularly and stay well hydrated to reduce the risk of deep vein thrombosis, which is elevated in pregnancy. Compression stockings are recommended for flights over four hours.

Travel insurance during pregnancy is essential. Make sure your policy covers pregnancy-related complications and potential early delivery, and check what level of neonatal care is available at your destination. Travelling to areas with a risk of Zika virus should be avoided throughout pregnancy, as Zika infection can cause serious foetal abnormalities.

Mental Health in Pregnancy

Antenatal anxiety and depression affect around one in five pregnant women, yet they are far less discussed than postnatal mental health. Feeling worried, low, or overwhelmed during pregnancy is not unusual, and it does not reflect any failing on your part as a parent-to-be.

Talk to your midwife honestly about how you are feeling at every appointment. They will ask, but do not wait to be asked if something is troubling you. Perinatal mental health services are available through the NHS in most areas and can provide real, effective support. Untreated antenatal mental health difficulties can affect both the pregnancy and the postnatal period, so seeking help early matters.

Knowing When to Seek Urgent Help

Understanding which symptoms require prompt medical attention is one of the most important safety skills in pregnancy. Contact your midwife, maternity unit, or 999 without delay if you experience any of the following: heavy bleeding at any stage of pregnancy, severe abdominal pain, a severe headache with visual disturbances or sudden swelling of face, hands, or feet (which can indicate pre-eclampsia), reduced or absent foetal movements after 24 weeks, or signs of premature labour before 37 weeks.

Trust your instincts. If something feels wrong, it is always better to be assessed and reassured than to wait and hope. Maternity units expect calls from worried parents. It is precisely what they are there for.