I took Clomid in both June and July for IUIs. I have PCOS but I am able to ovulate with the help of Metformin. They just gave me Clomid for the IUI cycles to up my chances. This month I have been waiting and waiting but didn't think I was going to ovulate (this would be the first cycle I've had a probelm with ovulation since Sept. 2011). Finally today I got EWCM and a positive OPK, and I am on CD21. I usually have a positive OPK somewhere between days 14-16 and have never had one later than CD18.

Has anyone else had delayed ovulation after coming off of a Clomid cycle? Should I be concerned that I am starting to have ovulation issues again?