The number of contractions in a normal day in the fifth month of pregnancy varies widely among individuals and is not standardized. As the weeks of pregnancy increase, the enlarged uterus increases in sensitivity, there will be sparse, irregular and painless uterine contractions, gradually increasing with the progress of pregnancy, but not accompanied by cervical dilatation, such painless contractions are normal physiological phenomena. When painless contractions occur in the fifth month of pregnancy and the cervical canal measures within the normal range, they are generally normal. If there are regular contractions, accompanied by lower abdominal pain or vaginal bleeding is not normal, consider the existence of preeclampsia, it is recommended to consult a doctor, under the guidance of the doctor to pay attention to appropriate rest, if necessary, given to inhibit contractions of ritodrine hydrochloride and other drugs to protect the fetus treatment. During pregnancy, you need to have regular checkups, count the fetal movements, and consult a doctor if you feel unwell.