You should not take motherwort granules during pregnancy. During pregnancy, the uterus becomes more sensitive and reacts more strongly to the influence of various harmful factors, which can easily induce uterine contractions and cause miscarriage or premature delivery. The main effect of motherwort is to invigorate blood circulation and regulate menstruation, and it also has the effect of promoting uterine contraction. Women who take motherwort granules during pregnancy, especially in early pregnancy, may suffer from abnormal bleeding in the uterine cavity due to its effect of activating blood circulation and removing blood stasis, which may cause preterm miscarriage. Even in the middle and late stages of pregnancy, taking motherwort granules may induce uterine contractions and cause late miscarriage and preterm labor symptoms. Moreover, the main indications for motherwort granules are due to irregular menstruation caused by blood stagnation or incomplete intrauterine dew after delivery or miscarriage, and there are no relevant indications for pregnant women.