Pregnant women try not to lift heavy objects, but the specific multiple objects can not be lifted and there is no uniform provisions, with the specific gestational weeks, pregnancy performance, personal capacity and so on have a certain relationship. Pregnant women must pay attention to the abdomen when lifting objects, when you find that you need the abdominal force to lift when you do not lift. In the first and second trimesters, when pregnant women carry heavy objects, they exert themselves at the waist and abdomen, and the pressure on the abdominal cavity may induce uterine contractions and cause symptoms of pre-miscarriage or preterm labor, which should be avoided absolutely. The middle 4 months of pregnancy, pregnant women are relatively good health, the fetus is relatively safe and stable, pregnant women can carry out physical labor within their capacity, can carry some appropriate weight of the items, but to avoid excessive force, the weight of 3-5kg should be able to withstand, as long as it does not increase the abdominal pressure will not affect the fetus. If the placenta is too low during pregnancy or if you have hypertensive syndrome during pregnancy, you should absolutely avoid carrying heavy objects. Be careful not to twist your waist when you exert force on your body to avoid indirectly affecting your abdomen.