The height of the uterine fundus can be used to estimate the size of the fetus and the week of pregnancy, the growth rate of the uterine fundus varies in different weeks of pregnancy, as follows: 1. 20-24 weeks, the growth rate is faster, an average of 1.6cm per week; 2. 36-39 weeks, the growth rate slows down, an average of 0.25cm per week. At 12 weeks it is about 2-3 fingers above the pubic symphysis, at 16 weeks it is between the navel and the pubic bone, at 20 weeks it is 1 finger below the umbilicus, at 24 weeks it is 1 finger above the umbilicus, at 28 weeks it is 3 fingers above the umbilicus, at 32 weeks it is between the umbilicus and the glabella, at 36 weeks it is 2 fingers below the glabella. At 40 weeks, the uterine fundus can be between the umbilicus and the saber or a little higher because the fetal head is descending into the pelvis and so on.