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Do I need to repeat quantitative beta HCG blood test if I get <0.1mIU/ml at 5 weeks after intercourse?Or can I rule pregnancy out?

1 doctor weighed in
Dr. Robert Kwok
Pediatrics

In brief: If 5 weeks after sex

Pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications.
A urine test gives a reliable result 3 weeks after last sex or 1 week after missing a period. A blood test should be positive a few days or a week earlier than that, but one need not do a blood test. Urine tests are very accurate and cheap to do.

In brief: If 5 weeks after sex

Pregnancy tests are very accurate and not affected by foods, herbs, common illnesses, sexually transmitted diseases, vaginal spotting, or medications.
A urine test gives a reliable result 3 weeks after last sex or 1 week after missing a period. A blood test should be positive a few days or a week earlier than that, but one need not do a blood test. Urine tests are very accurate and cheap to do.
Dr. Robert Kwok
Dr. Robert Kwok
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