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A member asked:
I had hcg blood test and it was a negative after 1 month of sex... how valid are blood tests? can they ever tell me that i'm not pregnant when i'm not
A doctor has provided 1 answer
Time & technique: Both urine and blood tests for HCG are very accurate in measuring hcg. It is better to do either test 4-5 days after a missed period. Negative pregnancy test done after one month of the last episode of sex is a good indication that the person is not pregnant. You should repeat the test 7-10 days later for an added measure.
Answered 4/2/2016
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