Generally, pregnancy can be detected with test strips when it is about 35 days old, but there are individual differences. In women with regular menstrual cycles, fertilization occurs within 24 hours after ovulation, and the fertilized egg will enter the uterine cavity and settle in the uterus 6-7 days after fertilization, and HCG will start to be secreted in the serum one day after that, while HCG in urine appears later. The pregnancy can be detected by morning urine with the use of pregnancy test paper at around 35 days of pregnancy. Due to the unstable development of the embryo during early pregnancy, you must pay attention to proper rest, avoid strenuous exercise and exertion, and prohibit coitus. Continue to take folic acid under the guidance of your doctor, and have an ultrasound test at about 40 days after menopause to confirm a normal intrauterine pregnancy. Early pregnancy as there is still early pregnancy reaction, so do not have to ask for a balanced diet, can be light, palatable diet is the main.