Tightness of the stomach at 19 weeks of pregnancy is not accompanied by other abnormal symptoms, may be improved by bed rest, reduce activities, appropriate oxygen, accompanied by vaginal bleeding to consult a doctor in time to see if the treatment of fetal preservation. 1. Bed rest: 19 weeks pregnant stomach tightness may be caused by the ligament pulling after the uterus enlargement, may also be false uterine contractions, usually pay more attention to bed rest, choose to sleep on the left side of the position, to provide the placenta with more adequate blood oxygen, may relieve the symptoms. 2. Reduce activities: 19 weeks pregnant stomach tight to reduce activities, try to avoid doing too much physical labor or heavy work, and do not have sex with men. 3. Appropriate oxygen: 19 weeks pregnant feeling tight stomach can go to the hospital appropriate oxygen, to see if the symptoms improve. 4. Fertility preservation treatment: 19 weeks pregnant stomach tightness accompanied by vaginal bleeding, to be alert to the fetus is caused by premature abortion, go to the hospital to do ultrasound to understand the development of the fetus in the womb, and then see whether it is necessary to preservation of the fetus treatment. During pregnancy, pay attention to more rest, at the same time should relax, avoid tension, anxiety, any discomfort should be timely to the hospital, by the doctor to clarify the diagnosis, and cooperate with the doctor symptomatic treatment.