At 4 days late My test would show positive if I was pregnant wouldn't it?

Creamcake

I have been feeling sick all week and throwing up and now I am 4 days late I've had stomachs ache everyday, pain in my lower back and sides as well if I was pregnant my test would show clear positive wouldn't it not a very light shade of pink it would be bold wouldn't it. because I'm 4 days late now n I've been having sex all month and last month. What do you think. What do you think. Im just curious to know my possibility