If you continue to have intercourse even though your period has been delayed, if you find that you are pregnant without symptoms such as abdominal pain or abnormal vaginal bleeding, it means that there is nothing wrong, and if you have the above symptoms, you may have a preeclampsia. Sperm and egg after the combination of about 6-8 days in the uterus began to bed, this time in the unstable period, if the pregnant woman in the case of unknowingly occasionally have a coitus, generally will not affect the embryo’s development of the bed, but if too intense or too many coitus, it may be the occurrence of preterm miscarriage. If the clinical symptoms disappear after rest or treatment with drugs such as dextroprogesterone, the pregnancy can continue. If the vaginal bleeding increases or the abdominal pain worsens, the pregnancy may develop into an inevitable miscarriage at a later stage. It is recommended that pregnant women should pay attention to rest when they first find out that they are pregnant, and go to the hospital for an ultrasound examination around 40 days of pregnancy to rule out abnormal pregnancy and other conditions, and should not have sex before the third trimester of pregnancy, and should consult a doctor in time if they have symptoms such as abdominal pain and abnormal vaginal bleeding.