Pregnancy or delayed periods can be determined by the following five tricks: 1. Urine pregnancy test: you can test yourself at home, is more convenient, it is recommended to take morning urine to do the test. If the test is positive, then it is considered to be pregnancy. If it is negative, it is usually delayed menstruation. 2. Ultrasound: If the ultrasound shows a gestational ring in the uterus or fetal buds or fetal heartbeat, it means that you are pregnant. 3. HCG test: taking blood to check HCG level is the earliest way to check for pregnancy, with a higher accuracy rate, which can determine whether a woman is pregnant or not based on the change of HCG. 4. Body temperature test: Generally, the normal body temperature of a person is 36-37℃ (measured under the armpit), while the body temperature of a pregnant woman in the early stage of pregnancy will rise. By mid-pregnancy, the body temperature will return to the original normal body temperature state. By monitoring the changes in body temperature to determine whether the pregnancy, is also one of the early pregnancy detection methods. 5. Symptoms: early pregnancy, some women may appear drowsiness, fatigue, nausea, vomiting, anorexia of greasy food and other phenomena, some sensitive pregnant women will appear frequent urination symptoms, early pregnancy estrogen changes, breast swelling and pain, areola deepening and other symptoms. If the menstrual period is postponed generally will not have the above early pregnancy reaction. If a woman of childbearing age who is sexually active has delayed menstruation, she can rule out pregnancy by using the above five tips.