A member asked:

I know opk can detect hcg as both r chemically almost similiar. does this mean -ve opk on 15 day past ovulation means you r not pregnant? if no, why?

A doctor has provided 1 answer

Yes, unless...: A negative OPK would indicate not pregnant unless you were super early and the HCG level was below the threshold for detection.

Answered 2/13/2015

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What should hCG level be at 11 days past ovulation if pregnant?

A doctor has provided 1 answer