Welcome to B&B Leanne1983! I've been ttc for a few months but since coming on here have realised that there's so much more to it than I thought! Here's what I've learned...
The best time to try is for the few days approaching ovulation. On a normal 28 day cycle ovulation is considered to be expected on CD14 (cycle day 14 - CD1 is the day your AF (aunt flo, period) arrives), but obviously everyone's cycle length and ovulation are different.
OPK
Ovulation prediction kits can be used to try to confirm when you are ovulating. A few days before you think you should be ovulating you can POAS (pee on a stick) and if you have a surge of LH, which is a hormone which can indicate ovulation is approaching, the test will show positive. You should then ovulate within the next 24-72 hours.
Fertilityfriend.com
This is a great website for charting. You take your BBT (basal body temp) first thing every morning and enter it on your chart. You can also record your opk result, as well as other symptoms which can show you may be due to ovulate. Your body temp will suddenly rise and stay elevated after you've ovulated.
Hope that helps and that I haven't just told you stuff you already know!!
C
x
BTW there is a thread which lists all the abbreviations, i think it's somewhere in one of the introduction forums