In general, more than three months of pregnancy belly does not appear obvious bulging, if it is a multi-fetal or body type is relatively thin pregnant women, may see a slight bulge in the abdomen. In general, if it is a single pregnancy, the vast majority of women in the third trimester of pregnancy, the bottom of the uterus is basically in the pubic symphysis of one finger to two fingers or so in height, usually from the shape of the body can not be seen directly obvious bulging, you need to carefully touch the lower abdomen, you may feel the uterus to increase. Usually in the third trimester of pregnancy, the length of the fetus is about 9cm, and the length of the top hip is 6 to 7cm. no obvious changes in appearance will occur in both menstruating mothers and primigravid mothers, but in the case of multiple births or if the pregnant woman’s own body type is relatively thin, the pregnant woman’s abdomen may be observed to appear slightly bulging phenomenon. To sum up, the fetus in the third trimester has basically stabilized, and it is recommended that more attention should be paid to rest and moderate exercise during pregnancy, and if any uncomfortable symptoms occur, they should go to the hospital in time for consultation and treatment.