What are false uterine contractions? Pregnant women often experience uterine contractions during pregnancy, and their intensity varies. False uterine contractions refer to irregular uterine contractions, which are generally mild and do not cause cervical opening or cervix opening. Shortening problem. Although false uterine contractions will not cause much harm to pregnant women and fetuses, if false uterine contractions always occur but do not start, this will still cause some trouble and worry for pregnant women. Why do pregnant women always have false contractions? The reason why pregnant women have false contractions is more complicated. Generally speaking, it is due to the increase in blood flow caused by uterine contractions.