The feeling of discomfort in the early stages of pregnancy can be seen in a variety of situations, common situations are as follows: 1, normal phenomenon: for pregnant women who have clearly intrauterine early pregnancy, early pregnancy stomach discomfort (such as vague abdominal pain or a feeling of falling) is mainly considered a physical discomfort caused by pregnancy, which is a normal physiological phenomenon. The discomfort may be induced by the destruction of the endometrium due to early embryo implantation, the pulling of the uterine ligament, and the accelerated metabolism due to the change of hormone level in the body. Such as abdominal pain, often manifested as a short period of time, both sides of the lower abdomen episodes, aggravated by exertion, can be relieved after lying down to rest; can also be due to pregnancy vomiting resulting in stomach discomfort. 2. Pre-eclampsia or miscarriage: If the discomfort is prolonged and aggravated, or accompanied by a little vaginal bleeding, the possibility of pre-eclampsia or miscarriage cannot be ruled out, and it is necessary to immediately go to the hospital to recheck blood HCG and ultrasound to clarify early intrauterine pregnancy. 3, ectopic pregnancy: If patients who have not been clearly pregnant in the past (HCG positive, vaginal ultrasound can not see the intrauterine fetal sac, the doctor suggested to review after a week; or those who have positive urine test paper at home) are uncomfortable in the early stage of pregnancy and gradually aggravated, especially abdominal pain, they need to be highly alert to the possibility of ectopic pregnancy and need to go to the hospital for timely consultation. If the discomfort is not relieved or worsens, especially for pregnant women with undetermined intrauterine pregnancy, timely medical consultation is needed to avoid ectopic pregnancy rupture and life-threatening bleeding.