AF 5 days late and neg HPT.

Amelia
AF was due last Thursday (Jan 29th). Took two HPT at two days late and both were negative. I have had no symptoms of either AF or being pregnant besides being super super tired and irritable. Normally when AF is coming my breasts are sore, but I dont even have that this time. Im so lost and too scared to test again and get another BFN. Help?!