7 weeks pregnant belly is not obvious. 7 weeks pregnant belongs to the early stages of pregnancy, this time period is the early stage of embryonic development, the size of the gestational sac is generally about 2-3cm, visible fetal heart, fetal buds, the uterus is slightly enlarged, confined to the pelvic cavity, pregnant women will not appear to show the stomach of the situation. After 12 weeks of pregnancy, the uterus grows beyond the pelvic cavity, and only then will the pregnant woman’s stomach appear slightly bulging. In early pregnancy, the embryo is in an unstable stage and is prone to miscarriage, so pregnant women should pay attention to avoiding exertion and carrying heavy objects. It is also necessary to take folic acid supplements to prevent fetal neural tube defects, and after the pregnancy is confirmed, it is necessary to go to the nearest hospital to set up a file, and under the guidance of the doctor, regular obstetric examination, to rule out chromosomal abnormalities in the fetus and other conditions.