Erin I am so sorry to hear about your loss. I love the ladies here, but my heart breaks a little bit when a new member joins.
My m/c was at 9w6d and I got my first AF 23 days later. I wasn't charting during that time, but I'm pretty sure that I O'd, however, I'm not positive that I O'd the next cycle. I wish there was a magic formula, but I'm afraid that everyone is different.
Good luck TTCAL. I look forward to getting to know you.