New FRER reliability

Aimee

New here so I apologize if this has been addressed, i tried searching. Has anyone had false negatives with the new FRERs? I am normally 26 day cycle, today is day 30 and no hints of AF coming. My first FRER (new ones) I took, had the control line straight in the middle, does that matter? I could just be having a wonky cycle, i just havent had a cycle this late since i was preg in March which ended in m/c.

TiA for your help!