Pregnancy Week by Week

Pregnancy Week by Week tracks the development of your baby and changes in your body. In the first trimester, rapid growth begins, with organs forming and the heartbeat detectable by ultrasound around week 6. By week 12, major organs are developed, and you may start to show. In the second trimester, the baby grows larger, with facial features and movements becoming more noticeable. The third trimester involves significant growth and maturation of organs, preparing the baby for birth. Throughout pregnancy, your body adapts, supporting the baby's development until delivery around 40 weeks.