Extreme fatigue during the third trimester

Late pregnancy can make sleep fragmented and movement more effortful. Pain, heartburn, leg discomfort, worry, and frequent urination may further reduce rest. Anaemia may present with low energy plus dizziness, pale skin, headaches, breathlessness, or a pounding heartbeat. Dehydration can cause thirst, dry mouth, dark urine, and light-headedness. An infection may cause fatigue with fever or other local symptoms. The pattern and associated signs help a clinician decide whether tests are needed.

Break tasks into smaller periods and rest before you become exhausted. Drink regularly, eat balanced meals, and ask for assistance with shopping, childcare, or chores. Try a comfortable sleep routine and mention pain or reflux at your antenatal visit. Keep taking prescribed supplements and medicines as directed; avoid starting remedies or high-dose supplements independently. Write down changes in energy, sleep, fluids, swelling, headaches, breathlessness, and fetal movements.

Get urgent help for fainting, chest pain, severe breathing difficulty, confusion, heavy bleeding, severe abdominal pain, or fluid loss. Call your maternity team promptly for severe headache with vision changes, sudden swelling, fever, persistent vomiting, painful urination, or a reduction in your baby’s usual movements.

Could this be anaemia, dehydration, or an infection? Do I need blood pressure, blood count, or urine checks? How can I manage sleep disruption safely? What is the correct contact route if my baby moves less?