When to worry about tiredness in pregnancy with anaemia

Anaemia reduces the blood's ability to carry oxygen, which can leave you unusually tired, weak, dizzy, or short of breath with ordinary activity. Pregnancy itself can also affect sleep and energy, so the pattern and severity matter. Blood tests help identify the type and degree of anaemia and guide treatment; tiredness alone cannot confirm its cause.

Tell your maternity clinician if tiredness is stopping normal activities, is worsening, or continues despite the treatment plan. Take prescribed iron or other treatment as directed and mention side effects rather than stopping it yourself. Keep follow-up blood tests so your team can check whether treatment is working. Choose regular meals, rest when needed, and ask which iron-rich foods are suitable for you.

Seek urgent help for breathlessness at rest, chest pain, fainting, a racing or irregular heartbeat with weakness, confusion, or sudden severe deterioration. Contact your maternity team promptly for persistent dizziness, marked weakness, or tiredness that prevents eating, drinking, walking safely, or caring for yourself. Heavy bleeding during pregnancy also needs immediate medical advice.

Ask which blood results explain your symptoms, when they should be repeated, and how to take your treatment around meals or other medicines. Ask what side effects are expected, what alternative treatment may be considered, and which symptoms should trigger urgent contact.