A single bar ten days after intercourse does not completely rule out the possibility of pregnancy. Pregnancy tests or pregnancy tests are used to determine whether a woman is pregnant by testing the human chorionic gonadotropin value in the urine. However, since the 10-day period is relatively short, it is possible that the fertilized egg has only been in the womb for a short period of time and the value of HGH in the urine is low, which makes the test paper unable to detect it. Also, drinking too much water can dilute the hormone concentration in the urine. Patients are advised to retest the morning urine HCG after a week or again after a delay in menstruation. If the patient suspects she is pregnant and is eager to know the result, she can go to the hospital in another 2-3 days to have her blood drawn for a human chorionic gonadotropin test, which is more accurate than test strips. If the value is greater than 6mIU/ml, the patient is pregnant. Patients also need to have a B-mode ultrasound to check if there is a gestational sac in the uterus to rule out the possibility of ectopic pregnancy and ectopic pregnancy. In addition, patients need to pay attention to ensure sufficient sleep and avoid bad habits such as staying up late and overnight. Diet should be diversified, avoid partial and picky eating, and take in all the nutrients needed by the body. You can eat foods containing various nutrients such as protein, carbohydrates and vitamins, such as egg custard, noodles, kiwi, etc.