What should you know about postnatal depression while pregnant?

Although people often say postnatal depression, depression may start while you are pregnant. Persistent low mood, loss of interest, guilt, anxiety, sleep or appetite changes beyond expected pregnancy effects, and difficulty functioning deserve attention. Pregnancy can also bring worries about birth, parenting, health, or relationships. These experiences are not a personal failure. [Low Mood After Birth](/symptoms/postnatal-low-mood/) describes a related symptom pattern, but only a clinician can assess what is happening now.

Tell your antenatal team, GP, or mental-health professional how long symptoms have been present and whether you have had depression before. Discuss talking therapy, medication, sleep, birth preferences, feeding plans, and practical support after delivery. Do not stop prescribed medicine suddenly or begin a supplement without checking with a clinician. Write down warning signs and trusted contacts so support is easier to activate after birth. [Perinatal Mental Health Support](/treatments/medical-gynaecology/perinatal-mental-health-support/) may be a useful starting point.

Seek prompt care if depression is affecting eating, sleep, work, antenatal appointments, relationships, or preparation for the baby. Get emergency help if you have thoughts of suicide or harming someone, feel unable to stay safe, or experience hallucinations, severe confusion, or extreme agitation. Contact local emergency services or the nearest emergency department and tell a trusted person immediately. Pregnancy does not make these symptoms something you must manage alone.

Ask: What treatment is suitable in pregnancy? How will we monitor my mood after birth? What support is available at home? Which medicines can be continued during feeding? Who should my partner contact if I become unsafe?