Dr. Coulam, an infertility specialist states:
delayed ovulation does not cause poor egg quality however, late ovulation can be associated w/polycystic ovaries. That is why late ovulation and increase frequency of miscarriage seem linked.
Sam Thatcher, MD, Ph.D. (fertility specialist) wrote:
If ovulation is delayed, the luteal phase is often inadequate. Yes, I think that implantation could be less likely. But late ovulation is better than no ovulation, can be manipulated and rarely prevent pregnancy.
I see repeated reference in all articles, to lower egg quality, but I read that to mean less likely to implant itself, not an actual defect in the egg.
This web site has a list of women who ovulate late and still conceived:
Most IVF centers are now grading egg /embryo quality before implantation and this procedure has shown all factors effecting egg quality. Primarily maternal age and heredity effect quality the most. There is repeated reference to prolonged cycles being a possible weakening effect.
The references are oddly spotty though. Meaning actual research is referred to, but rarely made available. The journals publishing them are professional journals, which you could reference at any Medical Library (check local college campuses) if you need to see the numbers.
I hope you have gotten the info you needed if not the answer you (and I) hoped we'd find. While these facts may be frustrating, they may also be irrelevant to your ability to conceive and have a perfectly healthy baby.
I am happy to answer any questions I can.
Best of Luck, christy