I had the boots thermometer that comes with a book for charting your temp. I couldn't make head nor tail of my charts, this was earlier in the year and I did give up with it.
With hindsight, it would have been better to use an online fertility charting facility like fertility friend, you can see the pattern much better than in a small book.
I've now invested in the a fertility monitor - First Response Cyclotest. They retail at £99 in Boots but I got mine brand new, sealed box for £32 at ebay. It's much better, it records your temps - up to 12 cycles so you can scroll through and see your temps. It flashes baby symbols at you when your fertile and two solid baby icons when you are in your really fertile phase. You can also tell it when you have your positive ov test or when you have your egg white CM. It builds up a picture of your cycle over the first few times you use it and each time it gives you a more accurate report of your fertile times.
There's usually a few of these going on ebay, keep your eye out, it's worth the investment.
Definitely have a go at charting, it really offers a good insight into your cycle.
