Extreme tiredness in the third trimester: what to know

A larger abdomen, back discomfort, frequent urination, reflux and difficulty finding a comfortable sleeping position can interrupt rest. Pregnancy also increases physical demands. Anemia, infection, thyroid problems, high blood pressure or emotional strain may add to fatigue. Pay attention to whether the change is gradual or sudden and whether it comes with headache, vision changes, swelling, pain, fever, breathlessness or reduced fetal movement.

Break chores into small tasks, sit while preparing food, use pillows to support sleep and accept help with shopping or lifting. Drink regularly and eat nourishing meals or snacks. Keep antenatal appointments and report fatigue that affects walking, eating, bathing or caring for yourself. Do not self-treat with iron or stimulants without advice; the right treatment depends on the cause and your pregnancy history.

Contact your maternity unit urgently for reduced fetal movement, bleeding, leaking fluid, regular painful contractions, severe headache, vision disturbance, sudden swelling, chest pain or trouble breathing. Seek same-day advice for fever, fainting, persistent vomiting, palpitations, severe dizziness or rapidly worsening weakness. Call emergency services if you cannot stay awake, feel confused or are struggling to breathe.

Ask whether your blood count and blood pressure need checking, how to improve sleep safely, what activity is suitable, and exactly when to call about fetal movement or labor symptoms.