When a woman is 12 weeks pregnant, she needs to go to the hospital for her first prenatal checkup. The depth of amniotic fluid is one of the important indicators that need to be checked at 12 weeks of pregnancy. The amniotic fluid volume between 400 and 1700 ml is normal at 12 weeks of pregnancy, and there is no exact figure. There is no exact figure. 12 weeks of pregnancy is already the middle of pregnancy, and clinically assessing whether the depth of amniotic fluid in the middle of pregnancy is normal requires ultrasonography, and the normal value is different for different monitoring methods. In general, any amniotic fluid volume exceeding 2000 ml during any period of pregnancy is called excessive amniotic fluid, and any amniotic fluid volume less than 300 ml is called hypohydramnios. Generally at 12 weeks of gestation, there is not a lot of amniotic fluid, because it is just in the middle of pregnancy and the fetus is relatively small, producing between 400-800 ml of amniotic fluid. If the amniotic fluid is too small, it is usually due to fetal dysplasia or placental problems, which need to be further identified and then treated promptly. The excessive amniotic fluid may be closely related to the development of the fetus, not excluding the possibility of fetal malformation, which requires detailed examination. In addition, there is also a great relationship with the physical quality of the pregnant woman herself. The amount of amniotic fluid needs to be determined by an ultrasound examination at the hospital. Therefore, women should strictly follow the time of prenatal checkups after pregnancy, and identify the causes of excessive or low amniotic fluid volume in time for symptomatic treatment. You should drink more water, exercise properly, and strengthen your nutrition.