Help! Af late & still BFN

Nancy

Ladies i was suppose 2 start AF on 10/30 then i put on the app that I was late so it pushed it to 11/2 nd still no AF now it pushed it to 11/6 still no AF my last AF was on 10/3 im useally on a 25-28 CD but still no AF or BFP

what should i do now?