A 18-year-old female asked:
would a hpt be accurate almost 20 days after sex?
1 doctor answer
Dr. Robert Kwok answered
32 years experience Pediatrics
Yes: Home pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, or medications. A correctly done urine test gives a reliable result 3 weeks after sex (3 weeks after when conception might have happened) or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon.
Answered on Jun 7, 2016
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