The uterus should grow about 1 cm a every week, or 4 cm every month. During the second half of the pregnancy, the size of the uterus in cm is close to the number of weeks that the woman has been pregnant.

a) The arrow points to the top of the pubic bone. Place the 0 of the tape measure here.

b) Follow the curve of the woman's abdomen and hold the tape at the top of her uterus