The position of the uterus in the third trimester is 2-3 fingers above the pubic symphysis, and at this time the uterus is just palpable in the abdomen. The non-pregnant uterus is smaller than an adult’s fist, measuring 3 x 5 x 7 cm. After pregnancy, the uterus slowly increases in size, but during the third trimester it is not palpable in the abdomen and remains in the pelvic cavity. At the end of the third trimester, around 12 weeks, the uterus exits the pelvic cavity and reaches the pubic symphysis, at which time the base of the uterus can be felt in the abdomen. At 16 weeks of gestation, the uterus can reach between the umbilicus and the pubic symphysis, at 28 weeks it can reach three fingers above the umbilicus, at 36 weeks it can reach two fingers below the glabella, and at 40 weeks, the expected date of delivery, the uterus can reach between the umbilicus and the glabella.