After nine days, you can’t usually test for pregnancy with a pregnancy test stick, the test is too early. Women in the ovulation period intercourse sperm and egg combined to form a fertilized egg, and bed, the body’s HCG will be significantly higher, generally can be 10 days after intercourse through a blood test blood HCG to determine whether the pregnancy. The HCG in the urine rises relatively slowly after pregnancy, and with the prolongation of pregnancy, the HCG content in the urine increases, about 14 days after intercourse, you can use test paper to detect pregnancy. If you use the test paper to test on the 9th day of intercourse, you can’t detect the pregnancy due to the low HCG content in the urine, resulting in false-negative results, it’s best to test after a few days, the accuracy will be relatively higher, such as a positive result, you can further draw blood to check the blood HCG to confirm whether you’re pregnant or not.