How many weeks into pregnancy can I see inside and outside the uterus? ——Guidelines for B-ultrasound examination during pregnancy Pregnancy is a sacred moment that every woman hopes to experience, and the health of the fetus is the most concerned thing for every expectant mother. During pregnancy, B-ultrasound examination can help expectant mothers understand the condition of the fetus, grasp the specific situation of the fetus inside and outside the uterus, and detect any possible problems in time. So, how many weeks pregnant can you see the uterus?