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A member asked:
Is a negative hcg blood test accurate if it been 4 weeks after sex?
2 doctors weighed in across 2 answers
Yes , 4 weeks is sufficient. good luck
Answered 10/19/2022
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Yes. Conception occurs within day or so of the sex. It takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.
Answered 11/5/2022
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