Frequent contractions without pain at 39 weeks of pregnancy are due to the fact that in late pregnancy, the uterus increases more obviously and the sensitivity of the uterine muscles increases, so the stomach becomes hard at the slightest stimulation, which is clinically known as pseudo-contraction and may be a precursor performance before labor starts. This situation does not need to be nervous and anxious, can be appropriate activities, false contractions will be relieved. If there are regular contractions, i.e. 20-30 min/time at the beginning, increasing to 10 min/time or 5 min/time for a longer period of time, and the pain is getting stronger and stronger, and there are symptoms of vaginal redness or vaginal flow, go to the hospital for delivery as soon as possible. In the late stage of pregnancy, pregnant women should make sure that they have prenatal checkups on time, count fetal movements and record them, and have regular fetal heartbeat monitoring. If you find that the fetal movement is reduced, the fetal heartbeat is abnormal or the amniotic fluid is abnormal, consult a doctor in time.