What occurs during the third trimester regarding the baby's position?

During the third trimester of pregnancy, it is common for the baby's head to drop into the pelvis in preparation for birth. This positioning is referred to as "lightening" or "engagement," where the baby settles into a lower position in the mother's abdomen, which can help alleviate some pressure on the mother's diaphragm and lungs. This shift is significant as it often indicates that the body is preparing for labor and delivery.

While the other options may describe different aspects of pregnancy or changes that occur at various stages, the specific process of the baby's head moving into the pelvic region is a key indicator of approaching labor and is typical of late-stage pregnancy. Understanding this movement is essential for anticipating the physical changes that mothers experience during this time.