Laura (Jelly) - If you get positive on 15, I would do once as soon as AF is gone (to refresh the supplies) then every other day from CD10 and every day from CD15 - 17 then a couple of times for luck.
So, CD7, 10, 12, 14, 15, 16, 17, 19, 21 (for luck)
I know it's easier said than done though and I used to worry that if we did it too much early on then we'd run out of steam by the important times.
Also, just to add, we only did it on the day of ov and the day after and that was enough
I also eat my chocolate etc in a weird way!
Jaffacakes, I used to eat all the chocolate and sponge and have a plate full of the jelly bits left over and eat them last!
Kit Kats, I nibble the chocolate all round the edges then try to take the wafer off in layers
Ferrero Rocher - I nibble the chocolate and split it in half sucking out the chocolate bit and saving the nut!
I do this with Twix, Mars, Boost and Turkish Delights too!

I think I enjoy my food too much!
Charli, I don't know about the oving from alternate sides thing. I would imagine it was possible that you could ov from the same side twice in a row? But there could be millions of things that could affect the pain