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A member asked:
Based on an opk and an ultrasound i believe i ovulated yesterday afternoon. this morning my bbt had not risen yet. i read it can take 12/24 hours after ovulation for bbt to rise. is this true?
3 doctors weighed in across 2 answers
Yes, but...: Yea. It takes a day or two for a temp rise, but BBT is not always reliable at confirming ovulation. Your GYN might check a Progesterone level about a week later to confirm ovulation.
Answered 6/30/2014
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Wives takes: Following the BBT is not in any way a reliable or recommended way to monitor ovulation.
Answered 6/11/2014
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