A member asked:

How long after implantation will a 25mil sensitive hpt be positive?

A doctor has provided 1 answer

After missed period: It takes the embryo about 2 weeks to make enough HCG for a positive pregnancy test. You may do a blood test a day after a missed period or an hpt 4-5 days after the missed period. Either test may be positive sooner, but a negative result on a test done too soon is not reliable.

Answered 9/21/2014

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