AJC- that's right, the CD21 progesterone BT assumes ovulation on CD14.If you ovulated on CD18 and had BT you would only, at the most seee the start of the rise. The peak of progesterone in a cycle with no conception is around 7 days post ovulation. So if you know the ovulation day I would suggest that you have the blood test 7 days later. Alternatively, my doctor for the last three months has reauested serial progesterone levels which means I have a BT every three days from ovualtion so the pattern can be clearly seen. Sorry, if this is a bit garbled!
Also, thanks re. FS luck- appt is next mon. Will let you know what happens











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