The chances of miscarriage increase during the first month of pregnancy, when the fertilized egg has just settled and the embryo is not particularly stable. Therefore, during the first trimester of pregnancy, sexual intercourse and strenuous exercise should be prohibited. In the early stages of pregnancy, it is important to keep a happy mood, strengthen nutrition, eat more seasonal fruits and vegetables, and have a regular work and rest schedule in order to ensure the safety of pregnancy. If there is bleeding during intercourse in early pregnancy, which is an aura of miscarriage, you should go to the hospital for an ultrasound examination to find out the size of the gestational sac and the location of the bed. Even progesterone and HCG tests should be performed, and effective fertility treatment should be given according to the results of the tests.