At the end of the 4th obstetric month (16 weeks), the fundus of the uterus is located in the middle of the distance between the pubis and the navel (4 transverse fingers above the symphysis). At the end of the 5th obstetric month (20 weeks), the fundus of the uterus is 2 transverse fingers below the navel; protrusion of the abdominal wall is noticeable. At the end of the 6th obstetric month (24 weeks), the fundus of the uterus is at the level of the navel. At the end of the 7th obstetric month (28 weeks), the uterine fundus is determined 2-3 fingers above the navel. At the end of the 8th obstetric month (32 weeks), the fundus of the uterus is midway between the navel and the xiphoid process. The navel begins to smooth out. The abdominal circumference at the level of the navel is 80-85 cm. At the end of the 9th obstetric month (38 weeks), the fundus of the uterus rises to the xiphoid process and costal arches - this is the highest level of the fundus of the pregnant uterus, the abdominal circumference is 90 cm. The navel is smoothed. At the end of the 10th obstetric month (40 weeks), the fundus of the uterus drops to the level at which it was at the end of the 8th month, i.e. to the middle of the distance between the navel and the xiphoid process. The navel protrudes. The abdominal circumference is 95-98 cm, the fetal head descends, in primigravidas it is pressed against the entrance to the small pelvis or stands as a small segment at the entrance to the small pelvis.