A member asked:

How accurate is a clear blue (ultra early test) 4 days after the expected period date. it shows not pregnant, is this accurate or should i take another at a different time?

A doctor has provided 1 answer

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 12/15/2022

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