Normally, the uterus is about _________ inches long and _______ inches wide. During pregnancy it expands tremendously to accommodate the developing child.

The normal size of the uterus varies depending on the individual and certain factors such as age and hormonal status. However, typically, the uterus is about 3 inches (approximately 7.5 cm) long and about 2 inches (approximately 5 cm) wide.

During pregnancy, the uterus undergoes significant changes; its size can expand dramatically to accommodate the growing fetus. By the end of a full-term pregnancy, the uterus can stretch to about the size of a watermelon, measuring about 12 inches (approximately 30 cm) long and 8 inches (approximately 20 cm) wide, which allows enough space for the developing child, the amniotic fluid, and the placenta.

These alterations are primarily due to hormonal changes and physical pressure as the embryo and later the fetus grow. The ability of the uterus to undergo such transformation is remarkable and showcases the adaptability of the female reproductive system.