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Plain-language articles about baby sleep, care, development, health, and safety.

Pregnancy Symptoms: What Is Common by Trimester and When to Call

Pregnancy symptoms commonly include nausea, fatigue, breast tenderness, food and smell changes, headaches, heartburn, frequent urination, aches, swelling, and sleep disruption. Symptoms vary by trimester; severe, persistent, worsening, or unusual symptoms need medical advice or urgent care.