whàts the chance of me being pregnant

Creamcake

I'm 4 days late, Since làst week I have been feeling sick everyday, have thrown up 4 times I can't eat food very well and keep feeling sick if I was pregnant wouldn't I get a clear test at 4 days late not a hint of a line or an apparant one nothing clear bold so Im probably not pregnant am I although I've had stomache ache all week. lower back ache. it would be clear ?