The feeling of falling stomach and urinary urgency at 28 weeks of pregnancy may be due to preterm labor, or it may be due to urinary tract infection. Preterm labor can be treated by hospital for fetal preservation, while urinary tract infection can be treated with sensitive antibiotics under the guidance of doctors according to different pathogenic bacteria. 1. Preterm labor: Preterm labor may be caused by factors such as multiple pregnancies, great mental stimulation of pregnant women and intrauterine infections. The majority of pregnant women will experience a small amount of vaginal bleeding or blood discharge. When the fetus descends into the pelvis, it may compress the bladder and cause urinary urgency. Pregnant women with preterm labor should pay attention to bed rest, use dexamethasone sodium phosphate injection to promote fetal lung maturation under the guidance of a doctor, take oral nifedipine tablets and other drugs to inhibit uterine contractions, apply magnesium sulfate injection to protect the central nervous system of the fetus and carry out fetal preservation; 2. Urinary tract infection: during pregnancy, due to the increase in uterine pressure on the ureter, progesterone makes the smooth muscle tone of the urinary system decrease, pregnant women are prone to urinary tract infection, appearing Urinary frequency, painful urination, urinary urgency, stomach drop and other symptoms. It can be treated with antibiotic drugs such as cefaclor tablets and cefuroxime tablets as prescribed by the doctor. Try to shorten the duration of medication during pregnancy and review the urine culture after treatment.