I called the cb care line yesterday and got some good advice. Basically if you perform the test wrong or miss a day and you have passed ovulation it will stay on high until the next cycle so you are right, there is no point in me testing any further this month as I have clearly ovulated.
Although I didn't miss a day, I think I may have performed the tests slightly wrong so may have thrown the monitor. Here's 2 things to be mindful of when performing tests...
1. Using the fmu. I normally test at 7am but on a number of days last week I had to get up around 4.30am to pee but I was using my 7am pee to monitor and I couldn't test at 4.30 as it wasn't within my 6 hour cbfm test window. The lady advised that you should always use fmu as the second one can be less concentrated. you can collect your fmu in a pot and then test within 12 hours. So in this instance I should have collected my fmu at 4.30am and tested as normal with that sample at 7am.
2. If collecting urine in a pot don't hold the test stick in the pot for more than 15 secs. I think this month I was holding for up to 30 secs (was waiting for the window to be filled with blue dye) but the lady advised this may flood the test thus giving inaccurate results.
This is just advice for anybody else who may be using cbfm to ensure accurate testing. Hopefully I won't need this advice as fingers crossed I get my BFP next month hee-hee!
The cbfm may have just missed your peak. I use an opk in the evening as well as cbfm in the morning as i guess if the lh surge is less than 24 hrs the cmfb can miss it. It sounds like you prob oved last weds and the cbfm missed it. I think it will now stay on high as it has confused itself. If it were me i would prob abandon the cbfm this cycle now as you are basically wasting money on the tests. It sounds like you bd on the right days so good luck.