AF due 11/12

Af was due on the 12th but she never showed up. Glow pushed it back two days, 14th came and nothing. Glow pushed it back another two days, no AF and still BFN. It’s the extra second day, tested and still negative. What should I do? Anybody in the same boat? Getting an annual exam on Monday w/ my obgyn🤷🏽‍♀️