You can detect pregnancy after a week of intercourse by taking a blood test at the hospital. If the human chorionic gonadotropin level in the blood is elevated, it means that conception has occurred. A positive pregnancy test will indicate a successful conception if the result is positive. In the early stage of pregnancy, there will be changes in the body, such as drowsiness, vomiting, breast pain, etc. The most important symptom is menopause, and there is a high chance of pregnancy if the menstruation is delayed for one week. After pregnancy it is important to take rest and do less strenuous exercise. If conception is confirmed, ultrasound testing can be performed to avoid ectopic pregnancy or pre-eclampsia, which may affect your health. After conception, you should enhance nutrition, take folic acid supplements and eat more protein-rich foods to provide sufficient nutrition for the baby’s development. Pay attention to maternity checkups during pregnancy to detect fetal abnormalities in time.