The pregnancy was detected one day after the menstrual delay is due to the early appearance of HCG in the peripheral blood of pregnant women. Preparing for pregnancy women in the ovulation period after intercourse, fertilization will be completed within 24 hours after ovulation, 6 to 7 days after fertilization of the fertilized egg will bed and began to secrete human chorionic gonadotropin, generally 1 day after the bed can be detected through the pregnant woman’s peripheral blood HCG levels to determine the pregnancy, so in the menstruation delayed a day when you can detect pregnancy through the blood HCG test. Early pregnancy through the blood HCG detection of pregnancy, but also in accordance with the doctor’s instructions in the menopause 6 weeks or so for ultrasound, to clarify the normal intrauterine pregnancy, but also can rule out ectopic pregnancy and grapes and other conditions. Early pregnancy should also pay attention to the appropriate reduction of activities, can not carry out heavy physical labor and strenuous exercise, appropriate increase in diet and nutrition.