Hormonal changes in early pregnancy can lead to breast tenderness, swelling, and sensitivity. Your breasts may feel heavier or sore. During pregnancy, the breasts undergo significant changes. Hormonal shifts, especially elevated levels of estrogen and progesterone, lead to breast enlargement, tenderness, and heightened sensitivity. Mammary glands prepare for milk production, resulting in visible veining and darkened areolas. These changes can be one of the first signs of pregnancy. As pregnancy progresses, breasts continue to grow in preparation for breastfeeding. While these changes are natural and temporary, they can vary among individuals, emphasizing the uniqueness of each woman’s pregnancy journey.