Help please - Period due today, BFN

Angie🌈🙏🏻✨
Hi ladies, I have been testing negative all week - my period is due today but no sign and normally I'd be getting slightly dark discharge leading up. But nothing like that... has anyone tested negative even on the day of missed period? I have a 26 day cycle and ovulate day 16 so doesn't leave many days after ovulation to get a positive result...