Took a FRER 4 days before AF - BFN, is a BFP still possible?

Ayesha
It was Negative :-( I'm due for AF on Sunday and wondering if it's still possible to get a BFP? I'm staying away from the tests for now but really want to retest on Sunday morning. Everyone says FRER is the holy grail of tests and if I didn't get a positive 4 days before AF I won't get one at all. Any input ladies?