Often you will hear/read as well that women "generally" ovulate 14 days before their period is due, whether they have the "typical" 28-day schedule or not. But here is my own experience: in my last pregnancy, my cycles were always 23-24 days in length. I used an Ovulation Predictor Kit to find out, when, in fact, I would ovulate. I got a positive with these tests on day 9 of my cycle (which meant that I should have ovulated within 24-36 hours). So I suppose in that cycle it did so happen that I ovulated approximately 14 days before my period was due (we were pregnant that first try). I happen to think that was just coincidence. [:I]
This time, since I delivered, my cycles have been all over the place, ranging from 23-28 days over the past few months, (and never the same length twice). Again, I used an OPK to try to make some sense of when "it" could be happening, and this time I got a positive on day 6!
So, based only on what I have read, and this experience, (and I'm no expert on the subject !), it seems entirely possible for your ovulation to occur days away from mid-cycle.
I'm sure someone will come along here soon with more input for you. My advice is, if you have the money, you might want to invest in an Ovulation Predictor Kit, (if you haven't already). Some women have great luck with it, others not so much.
I hope you are able to find some answers, and the TTC all works out well for you!
mother to angel Ila Elizabeth (February 6, 2004), 25w2d
currently TTC number 2