Patient's question:
Can pregnancy be detected after implantation?Doctor's answer:
After implantation, pregnancy cannot be detected. The time it takes for sperm to fertilize an egg is approximately 24 to 48 hours. After fertilization, the zygote travels through the fallopian tube to the uterus, and the time for implantation is about one week. Therefore, it is generally necessary to wait at least eleven days after intercourse before using a highly sensitive early pregnancy test. Additionally, if the menstrual cycle is delayed by 7 days, an early pregnancy test strip can be used to detect pregnancy. Two red lines on the test paper indicate a positive result, meaning pregnancy. Ten days after sexual intercourse, early pregnancy can be confirmed through blood HCG testing, which is currently the earliest and most accurate method.