Spin-off to O pain question

So for those of us who do get O pain, when exactly do you think it is happening in relation to O.

This is my first month TTC...been charting cycle length for a year and they are very predictable (28 days), and include O pain and spotting around CD 12 & 13 . But since I haven't been temping or using a O predictor kit, I'm not entirely clear on exactly when I am O'ing. According to ovulation calculators, it shouldn't be til after I experience the O pain and spotting, though, so I've been working off the assumption that the pain and spotting are a precursor to the O...does that make sense? Would CD 12 or 13 might be a tad early to O? I've read the pain can happen before, during, or after O - so it can vary person to person, but what has been your experience?

Re: Spin-off to O pain question

It can happen before, during or after so there is no way of definitely knowing. I have been charting for 2 months and it seems so far that I can feel it for 3 days so according to when I can feel it, it is before, during and after. Everyone is different though.