A comprehensive guide to the three trimesters of pregnancy, including developmental milestones and maternal changes.
Pregnancy is divided into three trimesters, each lasting approximately 13-14 weeks. Understanding what happens in each trimester can help you prepare for the changes ahead.
First Trimester (Weeks 1-13): This is a period of rapid development. The fertilized egg implants in the uterus and begins growing into an embryo. All major organs begin to form. Common symptoms include fatigue, nausea, and breast tenderness.
Second Trimester (Weeks 14-27): Often called the 'golden period,' many women experience increased energy. The baby grows significantly, and you may feel the first movements (quickening) around 18-22 weeks.
Third Trimester (Weeks 28-40): The baby continues to grow and mature. You may experience more discomfort as the baby gets larger. Braxton Hicks contractions may begin, and you'll prepare for labor and delivery.