15 days past +OPK

Rebekah

I’m 15 days past my +OPK (digital clearblue). I got a VERY faint line on 13 days past my positive OPK from a dollar store Pregnancy test but I’m starting to think it was a fluke. 14 and 15 days past my positive OPK were both completely negative. Am I probably out for the month??

Background- I was taking Femara and being monitored showing a mature follicle at 22mm and lining at 12 on cycle day 13.

Thanks