If you are bleeding at 31 weeks of pregnancy, you need to judge according to the cause and severity of the bleeding, and it may or may not be okay. If the amount of bleeding is relatively small, it is caused by vaginitis, cervical polyps and other gynecological diseases, generally will not have a greater impact on the development of the fetus, usually appropriate rest and pay attention to personal hygiene, and regular medical checkups can be. If the amount of bleeding is more, is the emergence of premature labor, may have something, need to actively protect the fetus, more bed rest, but also need to observe whether there is abdominal pain and other conditions, if the situation is more serious, it is best to actively seek medical hospitalization. During pregnancy, you need to maintain good habits, and the examination is very important.