Patient's question:
Detailed medical condition and consultation purpose: Normal menstruation is on the 24th of each month. Due to taking birth control pills, it was advanced to the 14th. However, it has been 40 days now and menstruation has still not occurred. A pregnancy test showed no signs of pregnancy. When should I check if I am pregnant?Duration of current illness and persistence: 40 days
Current general condition: No menstruation
Medical history: Previously normal
Previous diagnoses and treatment history and effectiveness: No signs of pregnancy
Ancillary tests: Pregnancy test strips
Other: No other tests were conducted
Doctor's answer:
Hello, after sperm and egg combine to form a zygote, it takes 6-8 days for implantation in the endometrium. Then, it takes 7-10 days for HCG secreted by the placenta to enter the urine. Adding these two periods together, it is scientific to detect pregnancy in the urine 18 days after intercourse.Advice: Generally, pregnancy can be detected 7 days after sexual intercourse, around 14 days, or occasionally after 20 days. You can use home pregnancy tests or undergo HCG testing at the hospital for confirmation. Wishing you well!