Charting-UGH!! I recently got off the pill and tried charting and that lasted about 3 days... Anyway, at a minimum, I would simply keep track of how long your cycles are. I think that the rule of thumb is you take the last day of your cycle, and then subtract 14 and that is the approximate date of ovulation. For example, my average cycle length (before getting pregnant with Evan) was 33 days. 33-14=19. I probably ovulated on day 19, and sure enough, that is when Evan was more than likely conceived.
I think that this is what Jill already said anyway, so sorry for the repeat!
Also, from what I understand, once you stop taking the pill, the hormones get out of your system pretty quickly. I've known lots of people who have gotten pregnant ON the pill, so I think that you should be fine.
Anyway, every other day BD seems to be a pretty good start. I told my sister to do that this cycle and lo and behold, today she called me with a ++++!!! I hope that yours happens quickly as well!
DS-Evan, 7/19/2003. Mild PE at 40 weeks