In fact, the yolk sac of pregnant women refers to the precursor of embryonic buds. Generally speaking, after successful conception, a woman will grow into the yolk sac first, and then become a germ. The yolk sac exists in the gestational sac, which mainly provides hormones for the embryo to support its growth and development, rather than food for the gestational sac. Generally, the physical condition of each pregnant woman is different from that of the fetus, and the yolk sac will disappear around the eighth week of pregnancy.
There are also a few yolk sacs of pregnant women in life, which may accompany pregnant women throughout pregnancy, but this situation is relatively rare. Generally, in the early pregnancy, when the placenta is not fully formed, the embryonic tissue mainly depends on the yolk sac to attach to the uterine wall of pregnant women. Usually after eight weeks of pregnancy, the placenta gradually develops to replace the yolk sac, so the yolk sac will gradually disappear.
Pregnant women are a special body. Once you find out that you are pregnant, you should pay attention to the preparation for raising your baby. In life, many women are at risk of miscarriage or premature delivery because of daily carelessness during pregnancy. Therefore, we must pay attention to avoid exercise that affects health during pregnancy, and we must also pay attention to not taking medicine casually during pregnancy, so as not to affect the development and health of the fetus.