How long does it take to detect pregnancy after intercourse?

It usually takes 7-14 days after intercourse to detect pregnancy. The specific time is related to factors such as the speed of fertilized egg implantation and the sensitivity of the detection method.

The fertilized egg usually completes implantation 6-7 days after intercourse, at which time the body begins to secrete human chorionic gonadotropin. Urine pregnancy test strips can detect hormones as early as 7 days after implantation, but the accuracy is low. It is recommended to wait 10-14 days for more reliable test results. Blood HCG detection is more sensitive and can be detected 7-10 days after intercourse. If the menstrual cycle is regular, the detection accuracy can reach a high level after menstruation is delayed for 1 week. The detection thresholds of different brands of test paper are different. When using, you should read the instructions to confirm the minimum detection concentration. The concentration of hormones in morning urine is higher, so it is recommended to use morning urine testing to improve accuracy.

It is recommended to choose a regular pharmacy to purchase pregnancy test products of qualified quality and strictly follow the instructions. If the test result is negative but menstruation continues to be delayed, the test can be repeated 3-5 days apart. During pregnancy preparations, you should maintain a regular schedule and avoid smoking and drinking. If you have persistent abdominal pain or abnormal bleeding, you need to seek medical attention promptly.