Extreme fatigue in the second trimester

Pregnancy changes circulation, sleep, appetite, and the amount of work your body does. A growing baby and expanding blood supply can make ordinary tasks feel harder. Anaemia is worth considering when fatigue comes with pale skin, dizziness, breathlessness, headaches, or a fast heartbeat. Nausea, vomiting, reduced fluid intake, illness, or emotional strain can intensify tiredness. Fatigue by itself cannot identify one cause, so the timing, associated symptoms, and pregnancy history matter.

Tell your maternity team or doctor if exhaustion limits walking, eating, working, or self-care. Keep regular meals and fluids, use short rest periods, and accept practical help with chores. Gentle movement may support sleep when your maternity team considers it suitable. Continue prescribed pregnancy supplements as directed, but do not add iron or other products without advice. Note dizziness, breathlessness, palpitations, fever, vomiting, sleep quality, and any change in fetal movement once you have been advised what to expect.

Seek urgent help for fainting, chest pain, severe breathing difficulty, confusion, severe headache with vision changes, heavy bleeding, severe abdominal pain, or inability to keep fluids down. Contact your maternity team promptly for fever, painful urination, worsening weakness, or a clear reduction in fetal movement after you have learned your baby’s usual pattern.

Could anaemia or dehydration explain this level of fatigue? Should my blood count, urine, or other checks be repeated? How much rest and activity are appropriate for me? Which pregnancy symptoms require same-day advice?