Early pregnancy test strips can usually be detected as early as 10-14 days after pregnancy. The principle of early pregnancy test paper is to detect human chorionic gonadotropin (HCG value), after pregnancy, the fertilized egg can produce human chorionic gonadotropin, pregnancy 10-14 days after the concentration of HCG in the urine can be detected by the early pregnancy test paper, the results are more accurate. Early pregnancy can also appear menopause, nausea, vomiting, fatigue, frequent urination and other feelings, which are normal phenomena. If the symptoms are serious, you should consult a doctor in time and be treated under the guidance of a doctor. Early pregnancy test paper error, if you want to confirm the diagnosis can be tested serum HCG value or ultrasound, pay attention to personal hygiene, pay attention to the menstrual situation.