Basal body temp vs. OPK LH surge
This is so frustrating. I've been tracking my BBT for the last 2 cycles and this cycle my follicular phase has been consistent (staying in the 97.1 -97.5 range.) Today, Glow predicted the start of my fertile window and I took an OPK and it was already positive (2 equal lines) but when is my BBT supposed to jump?
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