Ovulation help! What CD did you ovulate?

Lauren

Hey all, I’m hoping for some help to stay positive. This is my first cycle using Clomid after a PCOS diagnosis. My FS prescribed 50mg cycle days 3-7. I saw her on CD13 for a scan and I had one 20mm follicle. I’m now on CD16 and still getting negative OPKs. I was so happy when I was told there was a follicle but now I feel like ovulation was just wishful thinking. What days did you get a positive OPK on 50mg clomid?