Welcome babygirl - I've got pretty regular cycles so the CBFM works as it should for me, but I know some of the ladies with longer cycles have some special tricks if you need them.
1. Make sure you look at the stick to ensure that the dye travels all the way through before you put it in the monitor - both Daisy and I have had some of the dye get stuck and it gives you a misreading. Your first cycle it asks for sticks starting on day 6.
2. If its working right, you'll get some lows, then 2-3 highs, 2 peaks, 1 high, and back to lows. On my first cycle, I got 4 highs. It learns your cycle so it can better predict each time.
3. The bottom line closest to the chipped end is the estrogen line, that is dark blue before estrogen surges, then fades out when it does surge. The upper line usually appears when your LH is surging and you get peak/high days. You don't need to know any of this, b/c the monitor uses the lines to read the sticks and give you your level, but its interesting.
4. I also use OPKs in addition to the CBFM to validate and do additional tests later in the day.
5. I don't know about anyone else, but I've found I have to be quite "assertive" when putting the stick in the monitor, I feel like I have to slam it down for the monitor to recognize it.
6. It will ask for sticks in batches of 10, so if you get your peak before CD16, it'll stop asking you for sticks, if you don't, it'll ask you for 10 more sticks.
7. You don't have to turn the thing on on days it doesn't ask for sticks (CD 1 - 5) and after your peaks. Just reset it when you get your period the next cycle. If you forget to give it a stick when it wants one, it'll predict based on what it knows about your cycle. You can only give it a stick (I sound like I'm talking about a dog) within the 3 hour window you set it in.
That about sums up all my knowledge on the subject - I'm only 2 months in to using it though