I’m 10 days late on my period, I’m always regular, I’m NEVER late

I feel so sick, I have bad back, always tired (but can’t sleep for longer than 5 hours)

Always hungry, really bad headaches ... all sound good?

But I have done 4 pregnancy tests over the last 10 days and nothing ... I swear I can see a faint line on 1... but I’m not to sure

Shall I do a digital? Will that me more reliable ?

Shall I goto the doctors ? Will they refuse me a blood test though?