A 35-year-old female asked:
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tested with 25miu hpt, 19 days after sex with first morning urine. result was negative. how accurate is the test? i have irregular periods.

2 doctor answers
Dr. Norman Solberg
55 years experience Obstetrics and Gynecology
Accurate: The test will usually be positive around 14 days after conception. It's always positive 21 days after conception. Most likely you're not pregnant, but a repeat test 21 days after sex will tell you for sure.
Answered on Dec 15, 2013
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Dr. Bac Nguyen
23 years experience Family Medicine
Negative--repeat it: The hpts are quite accurate, but they have their limit--maybe a bit early for the test to pick-up in your case. So, waite 5-7 days and repeat the test. If still negative then, likely it is negative. If positive, congrats and call your doc for care. Good luck.
Answered on Dec 15, 2013

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