The term “pregnant” generally refers to a noticeable increase in the size of the abdomen, the appearance of which indicates the state of pregnancy. The number of weeks of pregnancy is related to the individual’s physical condition and many other factors (such as the position of the placenta, the amount of amniotic fluid, the number of fetuses, etc.), and there are some individual differences, but in general, most pregnant women will start to show at around 12 to 16 weeks of pregnancy. The baby’s development is a manifestation of the growth of the fetus, in general, most pregnant women will start to show at about 12 to 16 weeks of pregnancy, but there may be some individual differences in the specific time, such as placenta previa, the baby will show earlier compared to those with a posterior placenta; amniotic fluid, the baby will show earlier; and those with twins, the baby will also show earlier. If the pregnancy is too early or too late, it is recommended to consult a doctor in time to check the development of the fetus to ensure the health of the mother and baby.