FRER accuracy

Danielle • Married 07.09.16 💑 💍 DS 10.15.05 👦🏼 MMC 03.22.18 👼🏻 DD 08.05.19 🌈👶🏻

I'm currently 10 dpo and took an FRER yesterday and today, both with fmu, and got BFNs. Since the test claims to be 96% accurate 4 days before expected period (10dpo) am I out this month? Has anyone had a BFN at 10dpo with an FRER but got a positive in the next couple of days?