Did anyone get BFN 3 days before AF but then got BFP

I’ve had a BFN yesterday but don’t want to give up hope yet!! I was going to take a test this morning before work (I’ve always wanted to find out on a weekend so I could get my head around things before work or I wont concentrate and so I don’t have to wait alllllll day to tell my SO cos can’t tell him by text) anyway I can’t wait so I still take them before work, o went to take one this morning but it’s vanished from my bag. I think it’s a sign to take one tomorrow on Saturday 🤣 so yeah has anyone else got a BFN 3 days before AF? I’m hoping yesterday was that!