AM I PREGNANT 8 DAYS LATE

I’m going crazy. I have a 30 day cycle meaning my period was due Monday 24th December. My period is NEVER late. I’ve been testing every single day and I am only getting BFN. I have some pregnancy symptoms (makes it hard that no symptom is exclusively pregnancy only related.) the last 2/3 days I’ve also started having sore sensitive boobs. I thought today I would get a faint line- if it’s enough to give me sore boobs it should be enough to show up on a hpt, right? It’s currently Tuesday 01/01/19 and I am still getting BFN. I’ve had one blood test which was neg, and had a second blood test that I’ll get results from tomorrow, but I’m assuming if I’m still getting neg hpt I’ll get neg blood test too. I don’t know what’s happening ☹️☹️☹️