During what phase does labor begin?

Labor begins during the gestational phase, which encompasses the entire period of pregnancy from conception to birth. This phase includes multiple stages, with labor being the culmination of the gestational process. The gestational phase is characterized by significant physical changes and developmental milestones, preparing the body for childbirth.

During labor, the body undergoes a series of physiological changes, including contractions of the uterus, cervical dilation, and the eventual delivery of the baby. This process is initiated typically around the end of the gestational phase when the fetus is fully developed and ready to be born.