Community post
When they differ which should I believe BBT or OPK?
My normal temp spike happened the day I got my peak fertility OPK. This has never happened to me. Normally I get my peak OPK and then two days later I get a temp spike. When setting my O date which day should I choose?
Poll:
27 Jan 15 - BBT O day (5 votes)
28 Jan 15 - OPK O day (0 votes)
5 Answers • 9 years ago
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