I don't know much about PCOS. As an older woman, I'm lucky if I have a period occasionally, just enough to remind me I should be done with them (that's another story).
But, I do have a story about a very very dear friend of mine who had endromitriosis. She's the godmother to my 27 year old son and for many many years she and her husband tried to have children.
In her case, she was told she could never have children, but, if she was fortunate enough to conceive and carry to term, it might cure her.
It took from 1979 until 1996, after many miscarriages, rushes to the ER for burst cysts, etc. before she was finally able to conceive and carry. She's now the proud mother of 3 wonderful children.
My friend's last was born when she was 42, 7 years ago. She has had no further issues, other than the "older" woman issues that so often come about these days.
Something I'm sure your doctor has told you....Don't Stress! and Don't Worry about it....
You're still young, and f it happens, it will. You can't force it. Honestly, I wouldn't worry about it at all for another 3 to 5 years (depending on how urgent you are). If it doesn't happen, you might really consider other options (artificial insemination and/or adoption).
Whatever you decide to do, the best thing for YOU, is to not stress over it!