Pregnancyf

Pregnancyf is a term that refers to the state of a female mammal carrying a developing fetus or fetuses within her body. This biological process is initiated by fertilization, the fusion of a sperm and an egg, which then implants in the uterus. The duration of pregnancy, known as the gestation period, varies significantly across different species. For humans, a typical pregnancy lasts approximately 40 weeks, counted from the first day of the last menstrual period. During this time, the developing embryo, and later fetus, undergoes rapid growth and differentiation, supported by the maternal body through the placenta.

The maternal body undergoes numerous physiological and hormonal changes to accommodate and sustain the pregnancy. These can include changes in metabolism, cardiovascular system, and reproductive organs. Common experiences during human pregnancy include morning sickness, fatigue, and weight gain. The progression of pregnancy is typically divided into three trimesters, each characterized by distinct developmental milestones for the fetus and different physiological adjustments for the mother. Regular prenatal care, including medical check-ups and monitoring, is crucial to ensure the health of both the mother and the developing fetus. The culmination of pregnancy is childbirth, the process by which the fetus is expelled from the mother's body.