Hi i am currently taking femara from day 2 to day 6 to boost my fertility. my cycle is normally between 23-28 days. at what point should i start my opk?

Pregnancy ?'s: Testing for ovulation should start on days 12-16, given this information, but with any significant stress, ovulation may be delayed, so if negative, get another ovulation kit and continue until positive. Pregnancy is not always going to occur. If unsuccessful, ask your gyn physician about a hysterosalpingogram (HSG) to make certain your tubes are open.