There is no feeling when the sperm and egg are combined, after intercourse, the sperm reaches the jugular abdomen of the fallopian tube and combines with the egg, and fertilizes in the fallopian tube to form a fertilized egg, and the whole process of forming a fertilized egg takes more than 20 hours, and there is no symptom during this period. A small number of people in the fertilization of the egg will appear uncomfortable symptoms, the fertilization of the egg will appear slight abdominal pain, a small amount of vaginal bleeding, breast swelling and pain, fatigue and other symptoms, coitus about 10 days to go to the hospital to draw blood tests to check the value of blood HCG, you can determine whether or not the pregnancy. Through the blood test blood HCG more than 10IU / L, indicating successful conception, it is recommended that regular obstetric examination, do not do strenuous exercise, and can not coitus, early pregnancy is very easy to miscarriage, in the early stages of pregnancy need to be given supplemental folic acid, to prevent fetal neural tube development deformity, and at the same time, it is recommended to strengthen the nutrients can promote the development of the fetus.