Hey

I havent used a fertility monitor before but I know that a couple of times when using OPKs I've had positive results at around day 11 and then again (the real deal!) at around cd16. I read that sometimes the LH surge can come early as your body prepares/tries to release the egg but then it doesnt happen so it tries again a little later and thats when you ovulate? Not sure if this could be the same thing happening and thats why its coming up high maybe?

Good luck hun
Shell xx