Help a crazy woman out!!

Jade

My period still hasn’t turned up. My last period was 25th December to 27th. I didn’t track ovulation but should of been around the 10-11th January.

All tests are negative!

FRER, clear blue and Asda and boots own brand.

Still no sign of my period. surely they can’t all be wrong at 17-18dpo. 😳🤦‍♀️