Should I take another HPT??...

Hell • 25 years young... Gonna be a single mother... Love life... <3...
Well my cycles are pretty much regular... And I went out and got two hpt... And I took one on cycle day 24 and irt came back BFN... Than took the other on cycle day 26 and still came back BFN... Well now I am a day late for AF... And still don't feel like I am going to start... When should I take another??...