The document provides information about the stages of pregnancy from conception through birth. It explains that fertilization occurs when an egg and sperm unite in the fallopian tubes. The fertilized egg then implants in the uterus and develops into an embryo and later a fetus over a normal pregnancy period of around 40 weeks. The fetus is nourished through the placenta and umbilical cord. Pregnancy is divided into three trimesters, with major physical changes and growth occurring in each stage. Birth typically occurs through the vagina, but may also be by C-section or in rare cases of breech position. The newborn has physical traits like vernix and fontanelles that support development in the womb.