A member asked:

21day progesterone test shows no ovulation. bbt & pos opk suggest i did. temp dip on test day but shot back up. can fluctuations cause false negative?

A doctor has provided 1 answer
Dr. Michael Traub answered

Specializes in Fertility Medicine

2 possibilities: BBT and OPK only work sometimes and often they are wrong. the blood test is much more accurate. so either you did not ovulate, or your ovulation was a very poor quality and your progesterone level dropped down very quickly. either way it is not a good sign

Answered 5/29/2016

3.5k views

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