The cervical opening of 2 centimeters at 16 weeks of pregnancy can be preserved, but the chances of success will be relatively small, it is recommended to follow the doctor’s instructions for symptomatic treatment. The cervical opening of 2 centimeters at 16 weeks of pregnancy is usually caused by preeclampsia or cervical insufficiency. If there are no other discomforts, such as frequent contractions or heavy vaginal bleeding, the pregnancy can be preserved by treatments such as cervical cerclage to help reduce the size of the cervical opening, but the result may not be very optimistic due to the small gestation period. At 16 weeks, the cervical opening is already 2 centimeters open, and if the woman is having contractions or vaginal bleeding, the chances of successful birth control are usually low. Even with fertility preservation treatment, the fetus may fail. As 16 weeks of pregnancy is an early stage of pregnancy, it is recommended that you follow your doctor’s instructions to have regular checkups to help observe your health and the condition of the fetus.