After how many days of missed periods is a pregnancy test most accurate?

Patient's question:

No

Doctor's answer:

You can use early pregnancy test strips to check after a 7-day delay in the menstrual cycle or 10 to 14 days after intercourse. If two red lines appear on the test paper, it indicates a positive result, meaning pregnancy. Additionally, 7 days after sexual activity, you can go to the hospital for a blood HCG test, which is the most accurate method for detecting pregnancy.