No AF !

AF did not arrive today which she was expected too. I have no symptoms really, I get nauseous sometimes but not majorly, and now I notice a big blue vein going through the top of my left nipple. I have taken 2 test 1 yesterday and 1 the day before at 12 and 13 dpo both neg. i don’t think I’m pregnant because I don’t feel anything & because I didn’t get a positive test those 2 days. Should I test again or wait to see if she will show eventually?