If there are occasional mild contractions in early pregnancy, it is normal and will not affect the fetus, but if there are persistent contractions and the feeling is stronger, it may be a sign of preterm miscarriage, so you should immediately go to the obstetrics department for medical examination under the guidance of a doctor and, if necessary, for fetal preservation treatment. In addition, in early pregnancy, the embryo just laid in the uterus, still in the development stage, at this time strong contractions can cause miscarriage, so in early pregnancy should pay attention to the following points: 1, do not have intercourse: sexual intercourse may stimulate uterine contractions, so in early pregnancy and late pregnancy intercourse may cause miscarriage or preterm delivery; 2, do not touch certain drugs: such as musk, saffron, motherwort and other herbs to activate blood stasis, may also cause strong or frequent contractions, triggering miscarriage; 3, do not eat unclean food: pregnant mothers should eat less spicy, cold, stimulating food during pregnancy, if diarrhea is triggered by unclean diet, strong intestinal peristalsis may also stimulate uterine contractions, at this time there is a risk of miscarriage. During pregnancy, you should keep a good attitude, pay attention to rest, get enough sleep, do not stay up late, and avoid getting cold. If you experience strong contractions, you should seek medical attention promptly.