katharineb1980:
Great thank you. Do I use FMU, what is the best time to test?
According to peeonastick.com, "Should I use first morning urine (FMU) with OPK's? No.
LH is synthesized early in the day, and is not metabolized into your
urine until later. So, as a rule, you are more likely to catch your
surge later in the day. ("They" say you should test sometime around 2-4
p.m., but I've had fine luck at 10 p.m.-midnight.) Using FMU may not be a
problem for you, but if you do not detect a surge during the cycle you
use FMU, try testing later during the next cycle.
Note: the Clearblue Fertility Monitor is the exception. The FM Monitor does require FMU."