How common is it to get a negative on frer before missed period and still end up pregnant?

I’m just curious how many ladies have had BFNs with First response before your missed period and ended up with a BFP later? I’m feeling so discouraged. Like if it didn’t pick anything up 4 days before Expected af, i am probably out arent I!? 😭 I’m so sick of this much time trying and seeing bfn after bfn every month. I see so many women get faint positives or even clear as day positives before af and it makes me lose hope. Starting to think I’m infertile it’s so depressing.