What is the approximate duration of human gestation?

Human gestation, which refers to the period from conception to birth, typically lasts about nine months. This timeframe can vary slightly, ranging from approximately 38 to 42 weeks, with 40 weeks being the standard duration often associated with full-term pregnancies. The process involves complex physiological changes in both the mother and developing fetus, designed to ensure proper growth and development before birth.

The nine-month period allows adequate time for the different stages of embryonic and fetal development, including crucial periods for organ formation and maturation. The significance of this duration is also reflected in the way pregnancy is commonly tracked using weeks, with healthcare professionals marking progress with each passing week during prenatal visits.